The HLMP-EL3G-VW0DD is a 5mm high brightness precision optical performance AlInGaP LED provides superior light output for excellent readability in sunlight and are extremely reliable. AlInGaP LED technology provides extremely stable light output over long periods of time. Precision Optical Performance lamps utilize the aluminium indium gallium phosphide (AlInGaP) technology. This lamp is made with an advanced optical grade epoxy offering outdoor signal and sign application. The maximum LED junction temperature limit of +130°C enables high temperature operation in bright sunlight conditions. The epoxy contains UV inhibitor to reduce the effects of long term exposure to direct sunlight.