Circuits utilize two lamps, one yellow and one blue, along with a circuit that provides a random flickering effect of the lamps, The result is a very convincing representation of an arc welder in operation. Require a 10-18V AC or DC input for proper operation. Adaptable for all scales.
 
Includes larger lamps and s designed to illuminate a window from within a structure. If the window is frosted to represented years of grime, the flickering effect is very realistic.