System 3000 universal LED dimmer DRA DRA Features: Switching and dimming light bulbs, HV halogen lamps, electronic transformers for halogen or LED lamps, dimmable inductive transformers for halogen or LED lamps, HV LED or compact fluorescent lamps. Switching and dimming light bulbs, HV halogen lamps, electronic transformers for halogen or LED lamps, dimmable inductive transformers for halogen or LED lamps, HV LED or compact fluorescent lamps. Operation is via mechanical button (NO contact), System 3000 2- or 3-wire auxiliary unit or System 2000 2-wire auxiliary unit. Automatic or manual setting of dimming principle according to load (leading or trailing edge). Display of the selected operating mode using LED. Bulb-saving switch-on. Switch-on brightness can be saved permanently (possible with System 2000 and 3000 auxiliary unit). Switch on with the last brightness set, or a saved switch-on brightness. Minimum brightness can be set. Electronic short-circuit protection. Electronic excess-temperature protection. Operation with neutral conductor connection. Notes : If the ambient temperature is higher than 45 C, the connected load must be reduced.