Sony"s HVL-20DW2 double-decker camcorder light shines either 10 watts or 20 watts of light on the scene to help you capture footage in nearly any condition. A useful video light for shooting in dark locations. Features Camera-attachable video light Shines in either 10- or 20-watt mode Requires a mount shoe or separately sold accessory bracket Works with more than 140 Sony cameras Note: Battery packs and chargers sold separately. 10 Watt operation with NP-F330/530/550 Possible to switch 10W and 20W operation with Sony NP-F960, F750 or NP-F730 battery packs. Note: Only the 10 W setting can be used with the NP-F550. VCT-S30L Accessory bracket available for camcorders not equipped with mount shoe. Note: See your camcorder"s documentation to confirm.