System 3000 universal LED dimmer insert standard features: - Switching and dimming of incandescent lamps, HV halogen lamps, electronic transformers for halogen or LED lamps, dimmable inductive transformers for halogen or LED lamps, HV LED or compact fluorescent lamps. - Automatic or manual setting of the dimming principle (leading edge or trailing edge) to suit the load. - Display of the set operating mode via LED. - Lamp-friendly switching on. - Switch-on brightness can be saved permanently. - Switch on with the last set brightness or saved switch-on brightness. - Minimum brightness adjustable. - Electronic short-circuit protection. - Electronic overtemperature protection. - Operation with and without a neutral conductor connection. Notes: - The dimmer can generally be operated without a neutral conductor connection, but some LED and CFLi lamps require a neutral conductor connection to avoid flickering. - When operating without a neutral conductor, the minimum load for incandescent lamps, HV halogen, Gira Tronic transformers and wound transformers increases to 50 W. - Electronic transformers and ballasts for LED lamps can be operated using the dimming method specified by the manufacturer. - If the ambient temperature is higher than 25 C, the connected load must be reduced.