... : <3A (each channel) 3. 2 Years warranty 4. CE & RoHS Wireless 20Key RGB Controller RF controller adopts the advanced micro-control ... changing,stroboflash and other effects of change.Technical parameters1. working temperature: -20-60°C2. supply voltage: DC5V, 12V ,18V, 24V optional ... is adjustable,brightness is unadjustable21G/R crossfade11Seven-color gradual changing Wireless 20Key RGB Controller