The 1091M1-24V is a red, non-relampable LED indicator light from the 1091M series. It is designed for a nominal 24V supply, operating across a range of 12V to 24V DC or 22V to 32V AC. This solid-state indicator comes complete with a built-in 1000 ohm current-limiting resistor and a rectifier diode. Constructed with a polycarbonate lens, polished stainless steel bezel, and white nylon housing, it is designed to snap-fit into a 0.500-inch diameter hole in panels ranging from 0.020 to 0.100 inches thick.