LV4 Pro handheld LED controller is here! January 12, 2018/in News /by YsellaOur LV4 Pro handheld controller has arrived! The market leading, 4 channel, RGBW LED controller with embedded Lumen Radio has been made smaller, slimmer and now handles twice as much power as the standard LV4, with up to 8 amps per channel. For more information, click here. Or contact us.