Yongnuo SYD-1509 135 LED 960LM LIGHT PANEL LED Photo VIDEO LIGHT for Canon, Nikon, Pentax, Panasonic, Samsung and Olympus Digital SLR Cameras, Cameras Camcorders The brightness is adjustable with 12 levels. The farthest lighting distance reaches 15 feet. 135 pieces of high brightness LED lamps fits all brands of DV or digital cameras. It creates excellent effect in shade environment. It's small size, low weight and convenient for carrying. Power test function is available.