Basic Things to Know about LED Lamps Performance is the result of 3 groups of components Optical LED components perceived to deliver the same or better light effect as the original light source (beam shape, intensity, color point, color rendering), and perceived as equal or better light quality - variation between lamps Electrical LED components need to be 100% compatible with the electrical input power characteristics and 100% compatible with installed accessories (dimmers, transformers), while causing no non-compliances. Mechanical & thermal LED components mechanical compatibility (shape, size) into an existing socket & fixture and thermal compatibility into existing socket & fixture Components Drive Performance & Price AL

Color Binning Metal Halide HPS Point Source and SSL February 2009 Color Binning Metal Halide HPS Binning is the technique for sorting LED’s for consistency. Single bin LED’s are both expensive and hard to get. Strategies for good color consistency: Tight binning from the LED manufacturer (cost and logistical issues) Binning at the luminaire manufacturer (ColorKinetics has technology for this) Mixing within the luminaire Remote phosphor technology (next slide) CIE Chromaticity Diagram Each color consists of several different “bins” The performance of each LED is unique Each LED is binned by three measurements: output color power

Binning All LED Components In A Product Batch Are Different Manufacturing Inspection & QC Sorting a.k.a. Binning Higher output bins cost more Bins closer to the black body curve (“whiter”) cost more Manufacturers will not sell you just one bin in large volumes Manufacturers will not guarantee availability of specific bins Cool Warm High Output Low Output 3

Light Quality LEDs and Standards Methods for Achieving Good Quality Light Use only one LED bin LED Binning Algorithms Optical treatments to reduce variation Fixture Calibration Binning Algorithm example 7 Step McAdam Ellipse 4 Step McAdam w/ Algorithm 4

Light Quality LEDs and Standards Conforms to ANSI C78.377A Binning Algorithm example 7 Step McAdam Ellipse 4 Step McAdam w/ Algorithm PLC Optibin 5

Light Quality Philips LEDs Philips Optibin’s CCT and hue tolerances for LED’s fall within a 4-step MacAdam ellipse , rather than 7-step ellipse defined by ANSI standard Optibin dictates the use of LED’s from bins which lie close as possible to the black-body curve within the 4-step ellipse. This proprietary algorithm intelligently combines LED’s from different bins, guaranteeing color uniformity for lamps purchased and shipped at different times SDCM – Standard Deviation of Color Matching A color difference of 1 SDCM “step” is not visible 2 – 4 “steps” is barely visible 5+ readily noticeable 6

This is a Philips Exclusive Color Consistency Across Fixtures Binning Combined With Software Logarithms Improves Consistency This is a Philips Exclusive Optibin® LED Manufacturer LED manufacturers group output into bins Higher output bins cost more Bins closer to the black body curve (“whiter”) cost more Manufacturers will not sell you just one bin in large volumes Manufacturers will not guarantee availability of specific bins Optibin ® is a proprietary mathematical model that tells manufacturing which LEDs to place in which locations Allows us to buy a wider selection of bins Allows us to control fixture color and output performance Page 7 7