LED dimmer with rotary actuator. Without spreader. Very low installation depth: less than 20 mm. Pressure sequence changeover switch and soft latch. 2/3 conductor connection technology (neutral conductor not required). Neutral conductor can be connected optionally (recommended when connecting low loads, less than 10 W/VA). Optimized for dimming retrofit LED light sources (LEDi). For dimmable retrofit LED light sources (LEDi) and dimmable retrofit LED lamps (LEDi) on conventional or electronic transformers. Suitable for incandescent lamps, 230 V tungsten halogen lamps, low-voltage halogen lamps with conventional or electronic transformers, and dimmable halogen energy-saving lamps. Mixed load operation of LEDi and conventional lamps is possible. Features manually adjustable operating mode: leading edge/trailing edge phase control. Includes adjustable minimum and maximum brightness. Low-noise operation thanks to the use of MOSFET transistors. Short-circuit-proof and overload-proof (electronic fuse). Without central disc. Rated voltage: 230 V~, plus 10% / minus 10%. Rated frequency: 50 Hz/60 Hz. Rated power L: 2 - 100 W/VA (leading edge phase control). Rated power R,C: 10-360 W/VA (trailing edge phase control). Rated power LEDi: 2-100 W/VA (leading edge phase control), 2-200 W/VA (trailing edge phase control). Can be illuminated by glow lamp. Glow lamp included with the central disc. For conventional transformers, allow for approximately 20% transformer losses. For electronic transformers, allow for approximately 5% transformer losses.