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V4 constant voltage controller 12-48V DC 4x 5A, for RGBW/CCT LED strips, 4 channel  Features:  Supports lighting systems: single color (single zone or multiple zone), dual color, RGB, RGBW, CCT. 4096 levels 0-100% dimming smoothly without any flash. Compatible with dimmable LED strips/bulbs. 3 levels color temperature (warm/neutral/cool white light). Built-in 10 dynamic RGB modes, including jump or gradual change style. Light on/off fade time selectable. Simultaneous auto-transmission: automatically transmits the signal to another controller within 30m, synchronizes the operation with other controllers (it is recommended not to exceed 25 controllers connected to a push switch). Match button for connecting remote controls. Features Push-dimm function. Can be controlled by 2.4 GHz RF remote controls, push switches, sensor switches. Control with the SkySmart smart app is supported. One controller can control up to 10 remote controls. One remote control can control an unlimited number of controllers within 30 m. Controller adopts the most advanced PWM (Pulse Width Modulation) digital control technology, it is used for controlling constant voltage LED lamps. Overload, overheat, reverse polarity and short circuit protection. Certificates: CE (EMC/LVD), RoHS.  Technical data: Product model: V4. Compatibility: Skydance R1, R6-1, RT1, RU4, R6, RA1, RT6, RS1, RS6; R15, R16, R8-1, R9, RT4, R8, RT9, RS3, RS4, RS8, R21, R22; T1, T1-1, T1-K, KV, KC; T3, T3-1, T3-K. Number of channels: 4. Controlled lighting systems: single color / WW/CW / RGB / RGBW / RGB+CCT. Operating frequency: RF 2.4GHz. Supply voltage: 12V-48V DC. Output voltage: 12V-48V DC. Output current: 5A per channel. Output power: (60-240)W per channel. PWM frequency: 1000 Hz. Grayscale: 4096 levels. Dimming range: 0-100%. Operating distance: up to 30m. Safety class: IP20 (not waterproof). Certificates: CE, EMC, LVD, RED, RoHS. Operating temperature: -30~+55°C. Dimensions: 175 x 45 x 27 mm. Color: white. Weight: 125g.  Warranty: 24 months.