Primarily for use during cutovers of new signal locations or add-on signals at existing locations. Use Simulators to do pre-checks of bungalow wiring and electronic interlocking device programming. Two models of our Lamp Load Simulator are available: a version that simulates three 4-aspect signals and one that simulates four each 4-aspect signals. Both Models will work with lamp voltages from 6 to 16 volts. In both Simulators, toggle switches are provided for each aspect to do a “Lamp Out” test. Lead connections are not polarity sensitive. A separate common is provided for the Red signals. Both models work with either AC or DC voltages. Lamp load resistors are fully enclosed to prevent heat-caused injury to people or damage to nearby equipment. Three Cord Set lengths, 2 feet, 4 feet and 8 feet, are available, all with heavy-duty, keyed plugs to prevent connection mistakes. Each Simulator comes with a HD Carry Bag to transport the Simulator and its signal wiring interface cords.