This is one of our most popular video light and you can see why when you consider it's compact, powerful, easy to use and great value for money. Ideally suited to use with compact and action cameras. At 4200 lumens it provides a serious amount of light on it's own, but when mounting a pair on a camera tray you're getting 8400 lumens! With the light output having a CRI of Ra 90 this gives great colour depth to both video and photos. For the ultimate compact setup mount a single V40 on the Dive Lantern Z Handle and you can take it on a dive, clip it off and forget it's even there until you need it. If you don't mind a slightly larger setup mount a pair of V40s on the Dive Lantern Compact Camera Tray or CT25 Camera Tray and you've got a great setup capable of a wide variety of photos and video.