Lead-lighting Corporation announced sampling and volume availability of a complete line of 80x80mil rugged metal LED chips, including white, blue, and UV variations. The EV-80mil family allows packagers and integrators a wider variety of high-efficiency / high-output choices to address the growing number of applications in both the commercial lighting and industrial spaces. With the new family, a single 80x80mil device will typically replace four 40x40mil LED chips, which simplifies packaging and optical designs, while minimizing color fringing and shadow effects common to multi -chip implementations. SemiLEDs EV family, which combines vertical led high bay light supplier with rugged copper-alloy substrates, has proven to be especially well-suited for handling the increased thermal and electrical demands of large-chip implementations.

Mark Tuttle, General Manager for SemiLEDs Optoelectronics Co., Ltd., commented, “Applications in commercial and residential lighting, along with UV industrial applications, share the common challenge of achieving high output in compact form-factors, in the most cost-effective manner. SemiLEDs’ unique vertical-metal architectures allow these devices to be driven hard, without compromising either their stability or reliability, allowing packagers and integrators to deliver maximum optical power from extremely small package or chip-on-board footprints. “Mr. Tuttle continued, “The EV-80mil line is also able to deliver substantial versatility, including die-level white options that incorporate SemiLEDs’ proprietary ReadyWhite ™ phosphor coating technology, which minimizes blue-leakage and delivers impressive levels of color uniformity with tight binning options for low-profile and multi-color white packaged LEDs. ”

The new EV-80mil ReadyWhite chips incorporate SemiLEDs’ proprietary phosphor technology, and when packaged in a typical 5x5mm ceramic package, can be expected to deliver up to 1200 lumens at 3A. They are available in correlated color temperatures (CCTs) ranging from 2600 to 10,000K with color rendering indices from a minimum 65 to a minimum of 90, after packaging. Combined with their vertical LED chip architecture, SemiLEDs’ ReadyWhite solutions deliver a package-ready white chip to COB, single-die or multi-die packaging applications , eliminating requirements for sophisticated and costly phosphor manufacturing technology. When driven with currents below 1.0A, with the 80mil ReadyWhite chips deliver up to 145 cool white lumens per watt in typical package configurations, and are suited for such applications as outdoor street or area lighting , or heavy duty flashlights / torches.

The led high bay light for sale are available in standard wavelengths from 445 to 460nm, with options up to 470nm additionally available upon request, and deliver up to 4000mW of optical power at 450nm in typical ceramic packaging. As single-chip implementations, the ReadyWhite and blue chips are ideally suited to narrow beam pattern kilolumen applications that benefit from simplified optics and compact emitter sizes, including projectors, MR / GU / PAR spotlights, and automotive front lighting. The reduced chip count from the larger devices also simplifies system architectures for high-bay and other multi-die kilolumen applications.

A new manufacturer in the lighting industry, Stack, has developed a smart led high bay light for sale that does not require App interactions, according to a TechCrunch report.

Stack’s Alba smart LED bulb’s in-built sensors, sets it apart from Philips Hue and other smart lights on the market. The sensors allow the bulbs to adjust according to the environment. Thus, users do not have to constantly rely on App interactions. The company also claimed at a Q & A session during a press conference that the smart bulbs can learn from user behavior and adjust accordingly.

Yet, the bulb still comes with an App. The purpose of the App, as readers may have already guessed, enables customized programming of the smart LED bulbs and indicating when they should light up or not. Using communication protocol Zigbee, only a single hub is required for residential applications, said Stack CEO Neil Joseph.

For retail applications, the bulb aims to measure customer traffic and motion throughout the store, said Joseph. The bulbs will also be integrated with iBeacon as a part of interactivity with customers, while in homes the bulbs are expected to change color temperature throughout the day . In the morning, the bulbs will be a more bluish hue before turning into warmer white colors as night falls.

The buy led high bay lamps come with a 50,000 hour lifetime, which is expected to last at least 30 or more years for home applications, and 12 years in commercial settings. Stack also noted their LED bulbs are 80 percent more energy efficient than standard lights.

Similar to other smart lighting on the market, Alba smart bulbs will not be cheap. The bulbs come with a hefty price tag of US $ 150 for a two bulb and hub set, while the standard bulb price will be US $ 60. The company is taking preorders at the moment, and will not be shipping the lights till first quarter in 2015.

“Uncontrolled air leakage has long been an unquantified variable in load calculations for buildings large and small,” said Chris Mathis, a member of the 90.1 Committee who helped to develop the proposal. “led high bay light wholesale has also been identified as the ‘weak link’ in many otherwise well insulated building enclosures. These newly proposed envelope testing, inspection and verification procedures are intended to not only help deliver better performing building envelopes, but also should help reduce errors associated with envelope air leakage in equipment sizing calculations. ”

“The addendum addresses several items of timely and critical importance to users,” Mathis said. “First, it seeks to clarify several inspection and performance verification items that have long been requirements of the standard, with the goal of improving delivered performance and code compliance . Secondly, the proposed addendum includes new language addressing important building envelope inspection and verification requirements, especially as they relate to controlling air leakage. The proposal provides for multiple compliance methods including whole building air leakage testing and continuous air barrier inspection and performance verification procedures. ”

“Data provided to the Committee showed that the savings of these various approaches to envelope performance verification more than justify the potential increases in first cost,” he said. “Additionally, the costs of the verification procedures will go down over time as builders become more familiar with envelope performance testing, inspection and other verification techniques and their construction practices improve due to the important feedback they will provide. ”

Building enclosure professionals are encouraged to carefully review the proposed changes and to offer their comments to assist ASHRAE in strengthening these important code compliance provisions, Mathis noted.

Other addenda open for public review from Sept. 5 until Oct. 5, 2014 are:
• e relaxes the existing threshold for lighting control alterations while capturing a lot of energy efficiency by requiring more of the control requirements
• f clarifies an exception to the automatic daylight responsive controls requirements for daylight areas under skylights
• j removes an exception to the variable air volume system ventilation optimization when energy recovery ventilation is installed
• k requires envelope assemblies to comply with Appendix A when complying with the Energy Cost Budget Method in Appendix G
• m updates the text in Section 10.4.1 on electric motors to provide information about the required efficiency of small electric motors shown in Tables 10.8-4 and 10.8-5. In addition, small electric motors were not included in the scope of the Energy Independence ad Security Act of 2007, but now have performance requirements and are being added to the standard
• n updates the IEER values ​​for air-cooled variable refrigerant flow air conditioners and heat pumps above 65,000 Btu / h. Depending on the cooling capacity and product classes, the new led high bay light for sale are between 15 and 20% better than the values ​​they are replacing. The new IEERs become effective on Jan. 1, 2017
• o clarifies wording regarding duct seal class to avoid misinterpretation that compliance with the text that is struck out could substitute for the seal class requirement
• p updates Cooling Technology Institute Standard 201 in Table 6.8.1-7
• q limits systems that can take advantage of the fan power pressure allowance for fully ducted return and / or exhaust air systems
• r revises Section G3.1.1 Baseline HVAC System Type and Description to confirm the hierarchy for selecting baseline HVAC systems, clarify what floors to count and specify what building type to use when no one use is predominant
• s adds Exception 2 to 6.5.2.1 to address single duct variable air volume reheat systems with direct digital control
• u adds new requirements for transfer air in exhaust systems.

Rarely does “always” or “never” constitute valid advice An elder may have shared, “Never stick your finger in an empty light socket; you must always assume the electricity is on.” Bring that uncertainty forward to the life and reliability of an led high bay light price in an Edison socket. I believe the industry in making lamps look like their incandescent grandparent is falsely addressing limits on LED adoption. The assumption is that you can always consider using the LED in place of incandescent. Yet the only warning we have is to never use most available lamps in an enclosed fixture.
Consider for a moment the ecological predecessor of the LED lamp -.? The CFL Has it become common knowledge among consumers that CFLs will not perform as claimed in some fixture applications Whose responsibility is it to make them aware of these limitations Is it the belief? that LED will overcome CFL’s inherent shortcomings? In fact, LED lamps can and do fail even sooner and of course at higher fiscal cost.
I had the opportunity to share these thoughts with an engineer from a lamp manufacturer. He acknowledged that the lamp manufacturers have known for years that when CFLs are placed in the socket-up position, they last an average of 3,000 hours. Yet despite this knowledge , the package declaration to consumers only states 12,000 hours as the life expectancy. Our government regulates the packaging information.
While expanding our GU24-socket fixture product offerings, we undertook testing to determine the maximum CFL wattage as required by UL. Knowing a lamp consumes less power and thus produces less light while operating at higher temperatures, we measured CFL ballast enclosure temperatures as directed by lamp manufacturers.
After compiling results of different lamp brands, our findings indicated CFLs needed at least 20 in.3 / W in enclosed lighting chamber volume, such as a typical ceiling flush mount. For example, a dual 13W CFL lamp would meet stated life in an 18 -in. diameter bowl fixture. A dual 60W incandescent fixture could be as small as 13 in. Semi-enclosed fixtures depended upon lamp up or down and how close the glass shade was to the lamp. Interestingly, we also learned that the majority of CFLs quickly reduced power attaining a typical 70% level of stated light output.
Our lab attempted similar testing for LED lamps. With the exception of a single lamp brand with specs on use in enclosures, no other lamp manufacturer had temperature data to share with us. We learned that no standards exist to test and provide this information, more so that the led high bay light for sale is considered an isolated thermal plane and not considered to dissipate heat into the fixture. To further complicate matters, some manufacturers shared that the ceramic paint covering the metal heat sink or plastic enclosure surrounding the driver is applied that way in part for product safety. It seems that consumers understand not to touch an operating incandescent lamp with a bare hand, but since CFLs are cooler, LED lamps must also remain cool enough to touch.
Electronics folks know there are no new technical breakthroughs in thermal management. The latest LED lamps run electronics hotter than their predecessors and drivers can fail quickly from de-soldering or thermal breakdown of components.
Energy Star long-term testing for LED lamps occurs with 40 ° C degree air surrounding the lamp, and not in typical fixtures. We find in our 25 ° C temperature-controlled test lab that the lighting chambers of semi-enclosed wall sconces regularly exceed 60 ° C with 8W lamps. Enclosed multi-lamp ceiling fixtures can exceed 90 ° C. So what are the impacts to anticipated life because of elevated operating temperature?
Insiders may know that Energy Star attempted to address testing temperature in the recent revision of the standard. Presumably, utilities shot down any testing change. The market desire and dynamics to adopt energy-saving technology have inertia in the form of rebates the utilities are compelled to apply. And the recent proposal to change testing standards by the US Department of Energy does not revise the 40 ° C test, nor address any aspect of varying lamp applications.
The general public needs a range of life expectancy as the lamp is used by the consumer. We have to move beyond the never and always paradigm, or we risk having LED technology disappoint the buying public more than CFLs have.