Update on LED flasher/OFF/ON module.
A brief trip to Ace Hardware found the following:
1- 1 1/4" PVC Tee
2- 1 1/4" PVC Plugs
1- ATC fuse holder
1- 10A ATC fuse (packet of 5)
1- Toggle switch, double pole, double throw, 20A
1- Toggle switch weather proof covers (packet of 2)
1- 7 Pole Blade Tow vehicle plug for connecting to trailer umbilical
1- 2' #16 wire and 1/4" female spade connectors
On order from Summit Racing the American Autowire LED Flasher Relay 510226
I cut off the back part of the 7 Blade connector to allow a larger diameter space to tuck the fuse holder into, cut part of the PVC plugs down to only 3/8" insert depth into the PVC Tee to allow easier removal. Used the Dremel router bit to enlarge one of the interior PVC plugs to allow the switch to fit snugly and drilled a 1/2" hole in the plug for the switch to mount. Placed the weather proof cover to keep rain and dew out of the switch.
The circuit is very simple. One end of the fuse wire goes to the center contact of the switch and the other end goes to the "AX" or 1 o'clock position as you look at the front of the connector. Take the #16 wire and fold in half, strip 1/2" bare and connect it to the Taillight connector "TM" or the 11 o'clock position as viewed from the front of the plug. This gives you 2 leads from the same position of the plug to take one and connect to either end of the switch to complete one circuit for the LED lights to be ON. The switch works by flipping it to the opposite way you have the wire attached to complete that circuit. The switch has a center position for OFF. You can cut the leads down to about 6" to save on wire. Cut the other lead to 6" and it gets a female 1/4" connector to attach to the LED flasher relay at the "L" spade. Take another 6" piece of wire and connect it to the opposite end of the toggle switch connector, place another female connector on the other end and it will plug into the X spade of the LED flasher. I have used some small screws to attach the PVC Tee to the 7 Pin plug and the end plugs to the Tee so that all can be removed if needed. Possibly some caulk is appropriate in wet conditions to seal the joints for a better seal. I've tested part of the unit and the ON condition works as it should, but I need to receive the LED flasher relay in several days to finally test! On line reviews say it handles the LED lighting on cars as stated.
LED4RV web site shows a 12 volt
27 watt resistor RE12v27wSKU290 $7.95 that will convert the standard 552 flash relay to work with LEDs. This is a cheaper way to go than ordering the $17 LED relay, but takes up more space and puts off heat I didn't think was a great idea inside this PVC tee without some vent holes.
I'll post final photos when I get the new LED relay in next week.
Hope you all find this useful for trailers with LED running lights!