Specification:Model: G1500Product Name: FlashCompatible Camera: for Sony CameraMaterial: PlasticColor: BlackCircuit Design: IGBTFlash Index: GN58 (ISO100, 180mm)Flash Coverage: 14-180mm; manual zoom, auto zoom, flash head rotation (reflected flash)Flash mode: Automatic TTL mode, manual mode M, strobe mode Multi, 2.4G master control, 2.4G slave, optical induction S1, optical induction S2Wireless Trigger: 2.4G wireless flash, S1/S2 optical induction flashWireless Trigger Distance: A, optical induction, 20-30 meters indoor, 10-50 meters outdoor; B, 2.4G, 100 metersSupport Subordinate Unit Group: 3 groups (A, B, C)Radio Channel: 2.4G radio channel: 16 groups (1-16)Tilting Angle: -7-90°Panning Angle: One side 0-90°, the other side: 0-180°Color Temperature: 5500 kFlash Time: 1/200 s-1/20,000 sFlash Control: 1/128-1/1, step length: 0.3EV, total 22 level fine tuning adjustmentExternal Interface: Hot shoe, PC synchronization jack, external power interfaceRecycle Time: 2.3 sPower Supply: 4 x AA alkaline batteries / NI-MH battery(Batteries not included)Luminous frequency: 100-1500 timesAdditional Features: Power saving mode, overheating protectionSize: Approx. 200x75x57 mm/ 7.87x2.95x2.24 inchPacking List:1 x Flash Light1 x Protective Bag1 x Mini Stand1 x User Manual1 x Soft Diffuser