West Marine Double Contact Index Bayonet BAY15D-1157 LED Bulb. The WEST MARINEDouble Contact Index Bayonet BAY15D-1157 LED Bulb has 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 5 & 7.5 watt traditional bulbs using the small/short globe. Cross reference #'s BAY15D, 1034, 1178A, 2057A, 2357NA, 2357A, 1157A, 7528, 2057, 1016, 2357, 1196, 1157, 1142, 94, 3496, 2397, 2357ALL, 2057ALL, 7528L, 1157ST, 3496LL, 1034LL, 2397LL, 1157LL, 2057ST, 2357LL, 1157ALL, 2057LL, 7528LL, H1157. This is a dual brightness, and has indexed (offset) pins. 11-14VDC input range. 140 max lumens, radiates in all directions. Commonly used in automotive brake lights, interior marine lights, and various utility and signal/marker lights. Note this bulb is polarity (+/-) sensitive, if it fails to light when inserted into the fixture, the wires going into the fixture will need to be reversed. Note some boat builders wired fixtures without regard to polarity, which wire was + positive and - negative, due to the fact standard filament bulbs are not polarity sensitive.
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