Another clever example of testing the Phillips range of wakeup lights. This great video shows an effective implementation of the wakeup light which provides a more comfortable wake up from sleep inertia, where the body reacts positively to gradual light rather than that annoying alarm clock. Check it out
Vendors shall provide LED and LEC illuminated exit signs that meet the following specifications as well as local building and fire codes. Illuminated exit signs shall:
RESPONSIBLE PURCHASING NETWORK MODEL SPECIFICATION FOR LED EXIT SIGN RETROFIT KITS
Vendor shall be able to provide red, green, and white LED exit sign retrofit kits that:
Surprisingly to many, the true reliability and lifetime of light‐emitting diode (LED) lighting systems is currently unknown. Even worse, lumen maintenance values of LED devices are widely used as a proxy for the lifetime of an LED lighting system, which is misleading since light degradation or lumen maintenance is but one component of the reliability of a luminaire. For many manufacturers this approach cannot simply be ascribed to overly ambitious marketing efforts, but rather to dependence on anecdotal numbers in the absence of real data. In addition, we can impute simple ignorance in taking specifications at face value which may or may not live up to claims. It isn't just about the LED. Good LEDs can be incorporated into poorly engineered products and turn the Methuselah of lighting into the exponent of “live fast, die young.” The promise of LED lifetime is often presented in terms of hours and years but with little background data to support anything beyond vacuous promises. The statement of 100,000 hours of LED luminaire lifetime has given way to the realization that there is little consistency, very little published data, and few hard facts around so‐called luminaire lifetime numbers. The situation is better at the LED package level, where reputable manufacturers have thousands of hours of data under varying conditions.
But this is not enough. To manufacturers and specifiers in the solid‐state lighting (SSL) community, the dawning realization is that we need to work together towards understanding the issues surrounding true lifetime and reliability. We need to begin by cataloguing such failures and developing good models for underlying failure mechanisms. This process of understanding and explanation is very common in technological progress. Steam engines existed long before deep understanding of thermodynamic processes. With LEDs, we have a substantial head‐start on the underlying physics and many years of experience in both lighting and semi‐conductors as well as reliability of related products. There is no reason not to begin this journey and every reason to start. We will figure this out, find reliability methods and metrics, and learn the underlying root causes of failure. But without data, experiments and models, it is all conjecture. We need a program to drive to reliability metrics.
This guide is a set of recommendations for reporting and demonstrating reliability in terms of luminaire product lifetime. These recommendations have been developed by a working group under the U.S. Department of Energy Solid State Lighting program. This group is under the guidance of the SSL Quality Advocates oversight committee, a joint body of DOE and the Next Generation Lighting Industry Alliance (NGLIA). The reliability and lifetime working group is composed of members of the NGLIA as well as other experts in reliability, lighting, and LED technology. As such, this guide is not an accepted international standard. Rather, it is meant to provide standards bodies with recommendations for their work in supporting the needs of the SSL community. These standards organizations will ultimately determine the details of the methods to measure and report the reliability of SSL luminaire products.
To find out more, visit us at www.lights.co.nz, email us or give us a call - +64 3 3656020
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Modern learning and teaching is more personalised and diverse, resulting in pupils learning in a variety of spaces and in various ways. A dining area, for example, may be used for group discussion or individual reading; a circulation area, such as part of an atrium, could be used for informal tutoring or project work; and laptops could be used everywhere. It is important to find out in the early stages of briefing and design how spaces will be used by the school so that lighting flexibility is designed in.
In most types of buildings, users prefer rooms to have a day lit appearance during daytime hours. In schools, natural lighting during daylight hours should always be the main light source for reasons of quality of light and sustainability. Electric lighting and natural lighting should be complementary. Electric lighting will take over during the hours of darkness and should supplement natural lighting when it fades. To make sure that running costs and maintenance are reduced to minimum, light sources, luminaires and lighting controls need to be highly efficient, with a long life.
Pupils like spaces that are interesting and unique. They enjoy learning in them even though lighting conditions may not be ideal. There is a place for imaginative lighting environments in schools and this publication aims to encourage creativity, not create blandness or uniformity.
Health and safety
Learning and teaching rely upon good lighting. Although poor lighting is easily identified in use, it is often overlooked at the design stage. Our eyesight is resilient, so we may be unaware of the problems caused by poor lighting in our schools. Yet it can result in slower reading, poor posture, diminished concentration and long-term weakened vision. Lighting in schools is required not only for general safety but also for visual tasks. The two main issues to guard against are glare and flicker.
Glare
Glare is a common problem in the classroom. It occurs when a bright image (which is not the object one is trying to see) is seen either directly or by reflected light. This can cause significant difficulty with visual tasks. Although pupils try to compensate for glare by turning their heads or squinting, glare causes eyestrain and headaches and can sometimes be disabling. It can also cause loss of concentration and reduced productivity.
Glare can be divided into two types:
• Discomfort glare is not necessarily detrimental to vision but it produces feelings of visual discomfort.
• Disability glare occurs when a bright light source is close to the line of vision and makes the task more difficult to see. This problem is controlled by assessing the lighting installation in terms of its glare rating and ensuring that it does not exceed the recommended maximum.
Glare can be minimised by:
• The correct choice, orientation and positioning of the room furniture
• The use of internal or external blinds, which can reduce problems caused by excessive sunlight or daylight
• The use of louvers on fluorescent luminaires and/or the use of indirect lighting solutions, which will help reduce direct vision of the light source and therefore the instance of glare
• Correct choice of computer screen with anti-glare filters if necessary, together with orientation to avoid sunlight and daylight reflection
• Careful design of the luminance of the whiteboard relative both to sunlight and daylight glare and glare from luminaires.
Flicker
Flicker can cause discomfort or annoyance to some people. It can also produce stroboscopic effects with moving objects, which can be dangerous. For example, rotating machinery in a workshop can appear to be stationary. Epilepsy can be triggered by low frequency flashes of light, which can occur with some compact fluorescent lamps at ignition, or with discharge lamps towards the end of their life. Problems relating to balance, and some brain disorders, can also be exacerbated. All these can be avoided by using high frequency control gear.
Disability issues
Good quality lighting is important to help pupils learn, especially those with special educational needs (SEN) and/or any disability. Natural lighting with additional artificial light should be used where necessary, avoiding glare and revealing good visual contrast and colour rendering. Light levels should be adequate on the working plane and for people to clearly see the teacher’s face, the whiteboard and computers without creating reflections, shadows and harsh contrasts. For an even better effect, light sources should not be visible, flicker should be avoided and up-lighters should be used.
Hearing impaired people need to be able to see lip movements clearly, so the correct lighting level and direction are crucial. For example, if light is directed too much in a downward direction, it will produce harsh shadows, which will make lip reading difficult. The design of specialist accommodation for pupils with SEN and/or any disability is beyond the scope of this document and specialist advice should be sought. However, there are relevant design issues that should be considered for all schools:
• The colour rendering of the light source and the extent of contrast are particularly important. Some visual impairment involves a degree of colour blindness and it is important that contrast of tone as well as colour should be produced on the objects illuminated.
• Careful use of colour can help pupils recognise and identify objects. For instance, using a darker colour for a door frame (contrasting with door leaf and wall) will help in locating the door. A handle that clearly contrasts with the surface of the door and is non-reflective will also make it easier to distinguish.
• Students with visual impairment often require higher than normal levels of illuminance. It is not necessary to install this as a feature of the primary lighting system but provision should be available for supplementary task lighting.
Energy efficiency
The energy efficiency of artificial lighting depends on:
• The penetration of natural lighting indoors – if there is good daylight distribution in the classroom and good daylight levels, artificial lighting may not be required
• The luminaire efficiency and its electrical components, lamps and control gear
• The successful specification of the lighting controls, eg, their usability and response to changing conditions
• The operation, cleaning and maintenance regime.
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Whether tenants or building owners, today’s leading companies are no longer content with “facilities as usual.” Instead, the office environment is seen as a strategic asset, a flexible platform for meeting rapidly changing workflows and competitive needs. It’s a tool for boosting collaboration and communication. To make today’s office facilities as responsive, productive and attractive as possible, it’s important to adapt the spaces to the occupants’ ever-changing demands. In creating an office environment that fills those needs, you create higher value and return. New lighting technologies are helping to reshape the office environment. More efficient, more adaptable, and more sustainable lighting solutions support the varied settings for working and meeting. Understanding what moves a company’s bottom line is essential to selecting your office lighting systems.
To be a leader in today’s competitive environment, property owners and facility executives need to understand the importance of ambiance, well-being, and sustainability. Lighting can support these three key factors to help address the critical issues of productivity, corporate image, and bottom-line profitability— helping you to transform your facility in meaningful and innovative ways.
Today’s business workplace must be responsive, productive, sustainable, and profitable. New choices in lighting design can help drive solutions to the issues facing facility executives.
• Productivity: Enhance occupant motivation and increase productivity
• Brand Image: Impress visitors and attract tenants and customers
• Profitability: Control facility operational costs and overhead well-being productivity ambiance brand image profitability sustainability
Choosing the right office lighting solutions can help you achieve the desired mix of ambiance, well-being and sustainability.
Ambiance: Welcoming, inviting facilities can motivate occupants and engage visitors. Effective, well-illuminated environments can positively impact employee productivity and support your brand and mission.
Well-being: Comfortable, adaptable spaces have a direct impact on occupant well-being. The physical and emotional effects of smart office lighting can help people feel and perform better.
Sustainability: Employing systems that reduce a facility’s environmental impact builds a positive image and saves dollars on energy use and maintenance. Our lighting products offer some of the highest efficiencies and longest useful life spans of any available today. Philips is committed to innovative solutions for reducing a facility’s environmental ‘footprint’ and cutting energy use—while remaining cost-effective.
Lighting the Path to Productivity
New office environments are emerging to address today’s rapidly changing work styles and business approaches. For facility executives, this means facing critical social issues and advanced technologies—while remaining focused on maximizing building performance. Occupants and tenants spend a large portion of their days in the office, and are demanding better working environments that can spur innovation and boost productivity.
Lighting can make a space desirable not only by enhancing the visual environment, but by making a space more flexible. Lighting systems should adapt to occupant needs for team space, open floor plans and offices. With shorter lease terms, tenants may change, but the lighting system doesn’t have to. Philips lighting solutions can help transform ordinary buildings into high-performance facilities.
Creating a Positive Image
Facilities speak to who you are—and where you’re going. More than ever, business owners view their workplace as a competitive tool not only for boosting efficiency but also for recruiting new talent and winning new business. So in today’s competitive marketplace, first impressions count. Facility executives can set the tone with efficient general lighting, and set themselves apart with architectural and accent lighting, presenting the corporate brand image of a true leader.
Managing Costs and Increasing Profitability
In today’s economy, commercial facilities need to do everything they can to reduce overhead. Facility executives face spiralling occupancy costs on the one hand, and directives to boost margins on the other. Choosing the right combination of components and designing a system properly cuts operational expenses and enhances the overall contribution occupants make to an organization’s bottom line. Simplification—along with energy-efficient lighting solutions—means savings.
Replacing outdated lighting systems with more efficient, environmentally friendly solutions will reduce energy consumption and maintenance requirements. Working with fewer lamp types and standardizing wattages can reduce complexity, making maintenance more manageable and less costly. Philips has a strong commitment to sustainability, continuously finding innovative ways to deliver more environmentally sound and energy-efficient choices. We are convinced that those facilities that combine the principles of economic growth and environmental stewardship will be the winners in the future. To help you realize your potential savings, our team of lighting experts can perform a Lighting Audit to help you maximize your profits without sacrificing the occupant’s experience.
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From the seasoned business traveller to families on vacation, today’s hotel guests are well-versed in the range of lodging options available in the marketplace. Before they arrive for check-in, they check out amenities and services, and comparison shop for lodging in virtually any destination. Whether working away from home or planning an exotic getaway, guests seek properties that measure up to cultivated lifestyle expectations.
Hospitality is About Experiences
Hospitality is all about creating memorable travel experiences, with top-tier services and surroundings that win guest loyalty. Good lighting is a key component in creating those surroundings. From the welcoming atmosphere of a lobby to flexible guest room lighting to the subdued glow of an intimate restaurant, the right light creates a backdrop for a pleasant stay. Yet poor lighting can be a common guest complaint. To keep them coming back, it’s crucial to get lighting right the first time—and make it easy to maintain. For more than 100 years Philips has been providing products uniquely suited to improving the hospitality environment—from televisions to energy efficient lighting solutions. Let our expertise in hospitality help you create spaces that delight.
To be a leader in today’s competitive marketplace, hoteliers need to focus on the importance of ambiance, well-being and sustainability to address the critical issues of the guest experience, the brand and to meet your financial goals. Lighting can support these three key factors and help you transform your property in meaningful and innovative ways.
Ambiance: Welcoming and inviting spaces can engage guests in a variety of activities. The use of lighting solutions to enrich their surroundings can elevate guests’ moods and set the scene for a memorable hotel stay.
Well-Being: Comfortable, well-balanced spaces support the physical and emotional comfort of your guests. Efficient, well-balanced lighting systems can improve the guest experience and boost your bottom line.
Sustainability: Employing systems that reduce a property’s environmental impact builds a positive image, enhances guest relations, and saves dollars on energy use and maintenance. Today’s guests are conscious of the environment and care about how you operate your property—they want to know who you are as much as what you have to offer. Our lighting products offer some of the highest efficiencies and longest life of any available today. Philips is committed to innovative solutions for reducing a hotel’s environmental “footprint” and reducing energy use—while remaining cost-effective.
Choosing the right lighting solution can help you achieve the desired mix of ambiance, well-being and sustainability.
Ensure that each guest’s first impression is a positive one. Lighting serves as the backdrop for creating that memorable initial experience. It sets the scene for a successful hotel stay, and helps reinforce the intent of varied settings. Outdoors, architectural lighting can turn the hotel into a prominent landmark. Inside, the use of accent, or focal lighting can highlight signature elements, creating an inviting atmosphere and distinguishing your property from the competition. Scene-setting lighting design and colourful accents in the lobby communicate “you are welcome” to arriving guests. At the reception desk, bright light provides confidence and orientation. In guest rooms, flexible lighting scenes offer the option of bright, task light—or diffused, restful light—to provide your guests with an experience that meets their individual needs.
Making guests feel comfortable starts by allowing them to move freely within a visually appealing environment. Well-lit surroundings can improve comfort and confidence levels. At every turn, guests should feel confident and find opportunities to make a space their own. Flexible lighting enables guests and staff to adjust each environment to suit varied tasks. In offices and conference rooms, efficient, flexible lighting can adjust to varying working conditions to boost concentration and motivation; in the guest room, energizing and relaxing light can help the body adjust and increase comfort levels. In bathrooms, bright light revitalizes while presenting a hygienic impression.
Branding and Company Responsibility
As today’s hospitality climate continues to change with a focus on environmentally responsible initiatives, choosing sustainable lighting solutions for your properties can build brand loyalty among guests. Consumers increasingly make purchase decisions based on an organization’s environmental stewardship. Investing in Philips energy-efficient lamps, ballasts and systems that reduce your property’s environmental impact can pay dividends worth even more than the energy savings. Such investment can earn respect from customers and their willingness to become repeat guests.
Reducing Operating Costs
Because hotels operate 24-7, even small gains in efficiency can lead to significant savings. Replacing outdated lighting systems with more efficient, environmentally friendly solutions will reduce energy consumption and disposal costs. Selecting lighting components that perform better over time also means fewer lamp replacements and disruptions to hotel operations. Working with fewer lamp types and standardizing wattages can reduce complexity, making maintenance more manageable and less costly.
Reducing operating costs through the installation of energy efficient solutions can be measured using financial metrics like revenue per available room (RevPAR) or average daily room rate (ADR).
As noted by Energy Star, “On average, America’s 47,000 hotels spend $2,196 per available room each year on energy. This represents about 6 percent of all operating costs. Through a strategic approach to energy efficiency, a 10 percent reduction in energy consumption would have the same financial effect as increasing the average daily room rate (ADR) by $0.62 in limited-service hotels and by $1.35 in full-service hotels.”1
Hospitality T.C.O.: The Total Cost of (Lighting) Ownership
Understanding how various lighting choices impact the bottom line is essential. These elements will affect a property’s payback, cash outlays and return on investment. Taken together, it’s the total cost of ownership, or T.C.O.
Four factors drive the total cost of lighting ownership:
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Street Light Costs
Converting HPS, MH, mercury vapor, or incandescent street lights to LEDs incurs a capital cost, but this can be recouped over the lifetime of the lights. LEDs have an estimated lifetime five times longer than conventional HPS or MH lamps, and energy savings of 35% or more. These efficiencies mean that payback periods for LED street lights can currently be as low as 4.4 years (Ann Arbor, no date). Because the entire street luminaire (see below), not just the lamp, is typically replaced when converting conventional street lights to LED street lights, jurisdictions may reduce installation time and avoid warranty issues. More expensive LED street lighting systems include dimmers or motion sensors, but can dramatically decrease costs by reducing energy consumption and maintenance costs even further.
