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turn signal bulbs
03-16-2017, 08:33 PM
Post: #1
turn signal bulbs
When changing turn signal bulbs on a 1978 Dodge B200, what is the difference (if any) between a 1016 bulb and an 1157 bulb? Does it even matter?
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03-16-2017, 09:47 PM
Post: #2
RE: turn signal bulbs
The main difference is the parking filament (the one that's on the most) is slightly brighter than the 1157. (6 CP versus 4 CP) This may or may not be an issue with glare and / or extra heat created by the bulb in some smaller tail lamp assemblies, where the plastic lens is close to the bulb. The other thing is there's not as much contrast between the bright / dim filaments. Basically, if you replace one side and not the other you will think one has a bad connection because the difference will be obvious.

BTW, there are bulbs made with a brighter brake / signal filament to get around the contrast problem. The drawback is you may run into issues where the signal flasher will operate at a different rate and the filament is about double the brightness so WAY more heat in cases where you might sit in traffic with your foot on the brake for extended periods.
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