Waterproof switch, ready to mount!
Since my bike has to live outside (at least, until I bring it in for the winter) the light switch has to be weather proof. Googling for weatherproof switches, I was finding ones that were upwards of $20 and more AND still would have needed to be encased in something to mount it to the bike. So....
I take this switch from Radio Shack:
dropped into a PVC pipe cap from Home Depot like this:
Drilled two holes in the bottom of the cap for the wires, and filled the cap with epoxy once the switch was soldered to the wires and ready to be sealed... That keeps water out of the connection, but the switch itself probably isn't waterproof... so...
Bought some Neoprene gloves:
and stuffed the switch into the THUMB (switch towards the tip of the thumb). The cut end of the thumb is zip-tied around the wires that come out of the cap to look like this:
and I will be mounting it to the neck with a hose clamp (tucked in by the tank). The overall outside diameter is 1.25 inches.
if I had fully planned out the rubber glove waterproofing idea before buying the switch, I probably would have gone with a toggle or a push button as opposed to a rocker, but live and learn.
The most expensive component was the glove, and since you only need one, keep the other around for opening tight pickle jars... Gloves $8, switch $2, PVC cap 39 cents, epoxy $4 (but you don't use much)