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Universal Dimmer Switch Power MOSFET up to 400W. Automatic lamp detection. Stand-by loss only 0.1 watts. Minimum brightness adjustable. With nursery and snooze switch. For recessed mounting. 45 mm long, 55 mm wide, 18 mm deep. Universal dimmer switch for lamps up to 400 W, depending on the ventilation conditions. Dimmable energy-saving bulbs and dimmable 230 V LED lamps additionally depending on the lamp electronics. Switching in zero crossing with soft on and soft-off for lamp protection. Universal control voltage 8..230V UC, galvanically isolated from the supply and switching voltage 230V. Short control commands turn on/off, permanent control changes brightness up to the maximum value. An interruption of the control changes the dimming direction. The set brightness level remains stored when the memory functions are switched off. In the on-max functions, it is always switched on with maximum brightness level. In the event of a power failure, the switching position and the brightness level are stored and, if necessary, is switched on when the supply voltage is returned. Automatic electronic overload protection and over-temperature shutdown. With the top %lamp rotary switch, the minimum brightness (fully dimmed) can be set, e.g. for dimmable energy-saving lamps. The automatic mode allows dimming of all lamp types. With the lower function rotary switch, you can choose between five automatic operation functions: memory, memory+soft on, on max, on max+soft on and ESV+soft on. +ESL is a comfort position for energy-saving lamps, which have to be switched on with an increased voltage due to the design so that they turn on again when dimmed even cold. -ESL is a comfort position for energy-saving lamps, which cannot be switched on again due to their design when dimmed down. Therefore Memory is switched off in this position. In the +ESL and -ESL positions, inductive (wound) transformers must not be used. In addition, the maximum number of dimmable energy-saving lamps can be lower than in automatic mode. Function setting ESV such as memory + soft on with setting a fall delay on the %lamp rotary switch up to 90 minutes if not switched off manually. At the end switch-off warning by dimming within 1 minute. With childrens room switch: when switched on with prolonged button operation, after approx. 1 second with the smallest brightness and slowly dimmed up as long as you continue to touch without changing the last saved brightness level. With snooze switch: A double pulse dims the lighting from the current dimming position to the minimum brightness and switched off. The max. Dimming time of 60 minutes depends on the current dimming position and the set minimum brightness and can therefore be shortened accordingly. Short buttons can be switched off at any time during the dimming process. A long button during the dimming process dims up and ends the snooze circuit. L loads (inductive loads, e.g. wound transformers) and C loads (capacitive loads, e.g. electronic transformers) must not be mixed. R loads (resistive loads, e.g. 230 V incandescent and halogen lamps) can be mixed as desired.