Frequently Asked Questions
A. Pricing should be comparable to a compact fluorescent downlight, trim and lamp. Q. Why should I buy the LR6 instead of an incandescent? A. The LR6 is a much more efficient, comfortable and green solution. The LR6 uses 85% less energy than a conventional incandescent, generates no infrared heat and lasts more than 20 times longer than an incandescent bulb. The LR6 provides efficiency without compromise. Q. Why should I buy the LR6 instead of a CFL? A. The LR6 lasts 5 times longer than a CFL. It contains no toxic mercury and provides substantially improved color rendering over fluorescent. It is more efficient than a CFL, but looks and performs like incandescent. Q. What is the difference between the LR6 and the LR6C? A. The LR6 delivers light at a color temperature of 2700K. This means that it has a warm appearance similar to most incandescent lamps. The 3500K has a cooler appearance and seems to be the preference for commercial environments because its color temperature is closer to a fluorescent. Q. How does the LR6 output compare to an incandescent? A. The LR6 has a comparable delivered lumen output to a 65 Watt BR30, 50W PAR30, or a 100W A-lamp when installed in typical 6" downlights. View Product Demonstrations Q. How does the LR6 output compare to fluorescent? A. The LR6 has a comparable delivered lumen output to an 18W or 26W CFL depending on the type of recessed downlight utilized. View Product Demonstrations Q. What is the CRI (color rendering index) for the LR6? A. The LR6 has a CRI of 92. Q. How did you test for CRI, color temperatures, and photometry? A. We measured the CRI and color temperature in our integrating sphere and have validated our performance and photometric performance with independent testing labs, Lighting Sciences and CSA. Q. Is each LR6 tested before it is shipped? A. Yes, each LR6 is individually tested and tuned to the optimal color point before shipment. Q. How do you keep the color of the LR6 consistent? A. One of the biggest strengths of our technology is that it allows for exceptional color control and consistency. We dial in the color of each light to the optimal color point on the assembly line. We utilize active color maintenance to ensure that color consistency is maintained over the life of the product. Our specification is equal to or tighter than specifications for compact fluorescent lamps. Q. What is the efficiency of the LR6? A. The optical system is designed to deliver light with minimal optical losses. However, efficiency is somewhat difficult to measure since there are no lamps and the LEDs are permanently integrated with the optical system. A better measure of the LR6's performance is efficacy. Q. What is the efficacy of the LR6? A. Both the LR6 2700K and the LR6C 3500K have a nominal delivered light output of 650 lumens and input of 12 Watts for a delivered efficacy of greater than 54 lumens per watt. Q. Will the .ies file give me accurate foot candle levels for this fixture? A. The IES file is based on photometric testing conducted by Lighting Sciences Inc. in accordance with IES procedures. Q. Does the LR6 meet California's Title – 24 for efficacy? A. Yes, the LR6 exceeds California's Title – 24 for high efficacy luminaires. Please note, for new construction in California, utilize the GU-24 base. Q. What are the differences between the LR6 and the LR6-GU24? A. The LR6-GU24 has been designed specifically for new construction in California and other areas where high efficacy line voltage sockets are required. Some jurisdictions prefer the GU-24 socket because it prevents users from replacing the LR6 with low efficacy incandescent lamps. Q. How do I know if I can use the LR6 in my home/office? A. The LR6 is a downlight module for new construction and retrofit that installs easily in most standard six inch recessed IC or non-IC housings. Please reference our installation information for an up-to-date compatibility matrix. Q. Is the LR6 difficult to install? A. No, the LR6 installs into any existing can simply and easily. Please reference our installation information for detailed documentation. A. The LR6 was designed to deliver an optimal distribution of light that balances the amount of light delivered to the horizontal surfaces and vertical surfaces. The distribution is more sophisticated than what may be defined by a simple beam angle. It is a general illuminator that delivers an optimal amount of light when utilized on typical downlight spacing. Q. Is an IC or non-IC can recommended? A. The LR6 works with both the IC and non-IC housings. The LR6 produces substantially less heat than the lamps utilized in standard recessed housings. Q. What is the minimum operating temperature for the LR6? A. Currently, we state the minimum operating temperature for the LR6 as zero degrees Celsius. It is likely that the LR6 will operate at lower temperatures. We will be investigating this further and characterizing its performance in the next few months. Q. What is the maximum operating temperature for the LR6? A. We have tested the LR6 within both IC and non-IC cans in very demanding environments simulating a hot attic environment (up to 60 degrees Celsius). Because of our integrated thermal management features, even under these extremes, the maximum junction temperature of the LR6 LED's is less than manufacturer specified maximums. Q. Does the LR6 have a damp or wet rating? A. The LR6 is rated damp. We expect to have a wet listing in the future. Q. Do you offer fixtures with directional lighting? A. The LR6 has a broad distribution of light. However, the LE6 accessory is an adjustable eyeball trim that allows the user to aim and focus light towards a wall or other large vertical surface. Q. Do you have a spot distribution light? A. Not at this time. Q. Do you have any lights for markets other than North America? A. Our current products are 110-120V. We will have products designed for 220V to 240V 50Hz by May 2008. Q. Do your products contain any lead? A. Cree products are lead-free and ROHS compliant. Q. What type of aluminum is the LR6 housing made from? A. The LR6 is constructed from 100% recycled aluminum.
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