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Unread 08-25-2011, 06:14 PM   #1
Crewdude007
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Flea market lights - How do I figure out what bulbs are in them?

Just like the title says; I bought a set of off-road lights at a flea market and I need to figure out what bulbs are in them. I've googled every number I could find stamped on the housing but no luck. All I know is that they're halogen. How can I determine what wattage bulbs are in them?

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Unread 08-25-2011, 06:18 PM   #2
CJ7-Tim
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Probably 55 watt. Take the bulbs to the auto parts store and buy something that looks the same.
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Unread 08-28-2011, 07:47 AM   #3
Holder350
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Probably H3 bulbs......you can determine wattage by using OHMS law....voltage squared divided by resistance.

Most automotive lights are rated at 14v for their wattage.

so 14 squared / ohms = 196/ohms
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Unread 08-29-2011, 01:42 PM   #4
AKGeo
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simple answer: multimeter to the in and out wires, measure the resistance.
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