Promaster FA-1000 Flash Guide Number: 60(ASA 100) Auto Range: 3'-15' and 6'-30' Power Source: 2 AA Alkaline Batteries. Recycling Time: 6-10 seconds Angle of Coverage: 60 H 45 V ..Covers 35mm lens on 35mm Camera Automatic Exposure Control. Weight: 4oz(without batteries) Works with all Hot Shoe Cameras or with PC Flash Post