The 9001K, 9001SK and 9001KX push button lines have a large variety of operators and accessories for heavy industry applications. These operators are used in the petrochemical, metallurgy, mining, oil and gas, wastewater treatment and automotive manufacturing industries and more. LED bulbs provide long life and operate at a cooler teperature. This replacement super bright LED bulb is used to illuminate pilot lights, push buttons and selector switches with a red lens. This replacement LED bulb can be used in 24V, 48V or 120V LED light modules.