Enttec CVC4 4-Channel Constant Voltage LED Dimmer; 12 - 24 V input (20 A maximum); Output to LED strip (5A per channel maximum); Huge 1KHz PWM signal refresh rate; PLink in and out connector for auto-addressing (each unit can be spaced up to 300 m away from the next when using PLink over Cat6 cable); Single DMX connector for DMX/RDM input, or chaining between devices; Status LED and mode selection DIP switch to toggle between bitrate and RGB/RGBW operating modes; User-serviceable fuse to protect against short circuits; Passive cooling with internal overheating protection; Compact design with integrated 4mm surface mounting holes; Techn. Data:; Input Voltage: 12 -24 V DC; Max. output power: 240 W @12V / 480 W @24V; Device power draw; Max. 4 W (Idle 0.3 W); Max. current rating per channel: 5 W; Pulse width modulation (PWM) frequency: 1kHz (fixed); Fixture Modes: 3/4/6/8 Ch.; Connections:; Power Input & Dimming: Screw terminals, DMX512: Phoenix Screw Terminals, PLink: RJ45; IP rating: IP20; Body material: folded metal (black powder Coated); Dimensions: 112 x 87 x 32 mm; Weight: 0.3 kg