RL type for high-voltage halogen lamps and incandescent lamps with ohmic load and low-voltage halogen lamps with wound transformers and inductive load
RC type for high-voltage halogen lamps and incandescent lamps with ohmic load and low-voltage halogen lamps with electronic transformer and capacitive load
RLC type with automatic load detection for resistive, inductive or capacitive load
1...10 V type for fluorescent and energy saving lamps with electronic ballast