Flashpoint 620M 300 Watt AC/DC Monolight Strobe with Portable Battery Power Pack Choice of AC or DC powered operation-Battery power pack (FP2PP) Included in Kit Fires 180 full power flashes in D/C mode when using the FP2PP portable battery power pack Can be Fired with the Sync Cord Attached to the Camera PC Terminal, with a PC Adapter on the Hot Shoe (FAHSPCA) or with the Built in Slave Unit. Rugged Housing Flash Ready Light