This water-resistant extension cable will allow you to add 16-feet of working distance between the AC power supply and the Westcott Flex 1×1 Bi-Color LED Mat Cine Set. Our kits already include one of these, so only rent this if you need an additional 16-feet. Do note using this extra extension cable will slightly hinder output and dimming sensitivity when used with the cable already included in the Flex 1×1.