The Ltech F4-5A wireless receiver works with the EX8 Series LED Controllers to produce the desired effects on your RGBW or Single Colour led tape. The F4-5A can run up to 480w Maximum. Several F4-5A can be programmed together to work with each zone on the EX series controllesrs. The F4-5A can run a maximum of 25 meters of the XD60 RGBW LED Strip. ( Note: each 5 meter reel should be connected in parallel and not in series.).