The Zhiyun-Tech FIVERAY M40 is a compact yet powerful LED fill light. This pocket-sized light features a 2700 to 6200K adjustable color temperature, a separate 0 to 100% dimming function, and a runtime of up to 29 minutes at the maximum 40W output. The integrated 2600mAh battery charges in about 1 hour and 50 minutes using the included USB-C cable. The FIVERAY M40 also features LED status lights, fan cooling, and both fold-out bracket and 1/4"-20 thread mounting options.