Double color temperature LED light with 8 strong light-bulbs mixed cold and warm light make the light more natural. NO need to install any APP, it is easy to use, just put the fill-light clamp over the cell phone, then turn on the switch. The screen flash for iphone6S/6S plus shows weak light, but our 8 bulbs flash can be used in darker areas, softer brightness, fairer skin, and make it perfect when take photo at night, especially in KTV, BAR, even some action sports. With built-in rechargeable batteries to supply power and no consumption of the smartphone power. Brightness adjustable freely, strong, medium, soft to be adjusted.