Model: RF550D - Color: Black - Material: Plastic housing - 1.6" LCD screen - 48-LED lights - Adjustable 7 modes - Guide number: 15 - Effective flash range: 5cm ~ 150cm - Color temperature: 3000~15000K - Exposure time: 1/100s - Powered by 4 x AA batteries (not included) - Cable length: 21~120cm - Compatible with Nikon / Canon / Panasonic / Olympus etc. - Accessories include: - 4 x Diffusers (4 colors included: orange / blue / oyster white and transparent) - 8 x Adapter rings (49mm / 52mm / 55mm / 58mm / 62mm / 67mm / 72mm / 77mm) - 1 x Chinese/English manual