I've recently bought an excellent set of Fettronics chest lights. Due to the fact you got so hot wearing the costume and tend to sweat a lot (well I do anyway) how do people protect their chest light circuitry from moisture?
My board is just electrical taped to the back of my armor. I wear a t-shirt under my flightsuit and I've never had sweat go through my shirt, the flightsuit, and the vest to get the circuit board wet.