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Is Surge Protection Needed When Changing From Incandescent to LED Lights?

Question:

When changing incandescent bulbs to LED bulbs or incandescent tail lights to LED tail lights, does any consideration need to be given to adding any kind of current limiting, fuses, surge protection, etc? I just remember years ago when 120 volt LEDs were coming to the market, they required some type of protection device installed, but this was years ago. Just double checking. Thanks

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Expert Reply:

There is no need for any type of surge protection when making the switch to LED lights from incandescent. LED trailer lights, such as the Miro-Flex Tail Lights, # TLL28RK, are commonly being used to replace the less efficient incandescent lights.

The only issue you may encounter is hyperflashing - the rapid blinking of turn signals - which is possible because LED lights only draw about one-tenth the power of incandescent lights, causing your vehicle to react as if the light has burned out. If that occurs, you can use a load resistor such as the Putco unit, # DI34ZR.

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Kyle S

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