Luminus Devices SBT-70 Big Chip Round LEDs are the perfect solution for applications defined by a circular aperture. Such optical architectures, previously mismatched with a traditional square LED, can now be updated with round LEDs which better match the application. These Big Chip Round LEDs increase system-level efficiency by as much as 30%, enabling customers to use a single LED to replace a 250W HID lamp. They will accelerate the adoption of solid-state technology by displacing conventional light sources in high brightness lighting applications. Markets and applications that will benefit from Luminus' round LED technology include medical, machine vision, portable, and retail spot lighting. Luminus' photonic lattice technology enables large area LED chips with uniform brightness over the entire LED chip surface. With a thermal resistance from junction to case of 0.64ºC/W, these LEDs have the lowest thermal resistance of any LED on the market.