Radio system controller for 1-4 channel operation.Universal radio system controller for controlling the 1-4-channel LED modules. Possible control variants: white light, TunableWhite, RGB, RGBWCompatible with: white light remote control: 18199000, 18202000, TunableWhite remote control: 18198000, 18201000,RGB remote control: 18197000, 18200000, RGBW remote control: 18196000, 18194070 and/or 18194080. Please refer to the respective product description regarding additional functions for the aforementioned components. Radio master controller 18192000: voltage: 12-24 V DC, current: maximum 4 x 2.5 A, power: maximum 240 W / 480 W (12 V DC / 24 V DC), control: negative (common anode), control signal: PWM, radio frequency: 869.5 MHz, range (visual contact): up to 20 m, ambient temperature (ta): 0 °C to +40 °C, controller connection using screw terminals, (dimensions: L 160 x W 45 x H 18 mm. Material: plastic, delivery: including strain relief, controller per remote control: maximum 4 (for optimum radio connection) Controller for system extension: 18195000 (cable-bound): voltage: 12-24 V DC, current: maximum 4 x 2.5 A, power: maximum 240 W / 480 W (12 V DC / 24 V DC), control: negative (common anode), control signal: PWM, Ambient temperature (ta): 0 °C to +40 °C, controller connection using screw terminals, (Dimensions: L 160 x W 45 x H 18 mm. Material: plastic, delivery: including strain relief Degree of protection: according to DIN EN 60529 IP20, Protection class: (EN 61140) III, Power: 240 W, Control: Wireless technology control.