The WEST MARINE G4 Side Pin Downlight LED Bulbhas been designed as a replacement and upgrade for standard halogen, Xenon and incandescent filament bulbs, offering dramatically lower power consumption and heat generation, while having much greater lifetime and shock resistance. For even greater light output and quality as well as higher efficiency (more light per watt) please look to our Premium series bulbs. This bulb replaces Blue G4 bulbs, and other Blue LED disk modules with side pins. 10-16VDC input range-constant power. 95 max lumens. Similar brightness to a 4 or 5 watt blue halogen G4 JC5. For decorative and accent lighting. Dimmable from 7.5-10V 1 1/8" diameter Extremely long life Smart driver included This light is not +/- polarity sensitive