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LED Power Circuit


Bob Ayers

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1999
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Ranger
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I've seen several posts, asking how to wire LEDs, and the proper series resistor to use with them. I posted this circuit on R-F, and I thought TRS
members might want to take advantage of it. It's a NFET source-follower
circuit, and provides a constant voltage to the LEDs, independent of load (number of LEDs):


 


Jim Oaks

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Location
Nocona, Texas
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Ford Ranger
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4.0 V6
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4.0 / 2.3 Ecoboost
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33x12.50x15
I bought some yellow LED warning lights for my car trailer. It's (2) lights with a small control box that offers (3) flash patterns. I either need to find a bunch of (2) conductor wire to run from the box in the cab all the way back to the rear of the trailer, or find a way to override the switch box to just flash in one specific mode so I can mount the control box at the trailer and just run a switched power wire back to it.
 

Bob Ayers

New Member
Joined
Aug 28, 2007
Messages
2,274
Reaction score
16
Points
0
Location
Durham, NC
Vehicle Year
1999
Make / Model
Ranger
Transmission
Automatic
I bought some yellow LED warning lights for my car trailer. It's (2) lights with a small control box that offers (3) flash patterns. I either need to find a bunch of (2) conductor wire to run from the box in the cab all the way back to the rear of the trailer, or find a way to override the switch box to just flash in one specific mode so I can mount the control box at the trailer and just run a switched power wire back to it.

Is the control box water-proof?
 

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