LED tail light bulb

[yeager1]

I know it's been covered, but I can't seem to find it- I'm looking to replace my M35 tail light bulbs with brighter led bulbs (don't want to spend the money for full led housings) and more importantly I want dual voltage led bulbs for my trailer so I can run it behind a 12 or 24 volt vehicle. Does anyone have a link or part number to some good ones? Thanks

 

[jasonjc]

Not shure about the LED's. But if you paint the inside of the tail light housing sliver or chrome, the light will look alot brighter

 

[cranetruck]

You can always use this method, cost me about $17/assy several years ago and good for 10 to 30 volts.
LEDs are very directional and improving the reflectivity of the inside of the case won't help...good for incandescents though.

 

[Jones]

Remember that you'll have to change flasher units since LEDs don't draw enough current to trigger a standard unit.
Here's a picture of Truck-Lite's unit.
I'm not sure about a mixed system either, if you're only planning the change the taillights.
Last, the LED flashers I've found so far aren't "omni-volt" (10 - 30 vdc), they're either 12 vdc or 24 vdc, not both.

 

[cranetruck]

Remember that you'll have to change flasher units since LEDs don't draw enough current to trigger a standard unit.
Here's a picture of Truck-Lite's unit.
I'm not sure about a mixed system either, if you're only planning the change the taillights.
Last, the LED flashers I've found so far aren't "omni-volt" (10 - 30 vdc), they're either 12 vdc or 24 vdc, not both.

The military solid state flasher unit is basically a power transistor driven by an oscillator and will work for any load, it's not "thermo electric", which would depend on the load current to operate. The particular flasher that I dissected had no overload protection, which is one reason I have used external relays for the load carrying duty.

The circuit board shown in the image above has a built-in voltage regulator for the full range of supply voltages.