The WEST MARINE G4 Bi-Pin 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 and has similar brightness to Mini/micro 3 watt traditional G4 bi-pin bulbs using the small/short globe. Cross reference #'s G4 T3 JC JC3. 11-14VDC input range. 65 max lumens, radiates in all directions. commonly used in interior lights. Daylight white. Dimmable. Note this bulb is polarity (+/-) sensitive, if it fails to light when inserted into the fixture, remove the bulb, rotate 180 degrees and re-insert.