Optronics' GloLight Series lighting comes as both 4-inch round and 6-inch oval LED stop, tail and turn lamps. Designed to stand out and look different than other lamps, these lights have a smoothly illuminated outer band that surrounds a central LED array that remains unlit during standard tail light operation. The dual-function outer ring brightens and the central LED array lights only during stop and turn functions. Meets all FMVSS 108 and SAE photometric requirements for visibility and safety. Made of tough sonically welded polycarbonate material with a solid-state, surface-mount device (SMD) design that protects their electronics against moisture, shock and vibration.