Luminus Devices SST-50 Series White Big Chip LEDs™ provide high lumen output and high efficacy from a single Big Chip. Typically operated in the 5W-10W range, the SST-50 is ideal for projecting a tight, uniform spot. These LEDs are made with Luminus' photonic lattice technology, which enables large area LED chips with uniform brightness over the entire LED chip surface. The optical power and brightness produced by these large monolithic chips enable solutions which replace arc and halogen lamps where arrays of traditional high power LEDs cannot. With a thermal resistance from junction to case of 2.45ºC/W, Luminus Devices SST-50 Series White Big Chip LEDs™ have the lowest thermal resistance of any LED on the market. This allows the LED to be driven at higher current densities while maintaining a low junction temperature, thereby resulting in brighter solutions and longer lifetimes.