LED Power Circuit

[Bob Ayers]

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]

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]

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?