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.
10 watts (with NP-F330/530/550) VCT-S30L Accessory bracket available for camcorders not equipped with mount shoe. See your camcorder's documentation to confirm. 10 watt and 20 watt modes (with NP-F730H/750/950)
Specifications:
Power Consumption: DC 7.2V / Halogen Lamp 10.0W or 20.0W switchable
10 Watt Center Luminance Intensity (approximate): 400 cd
20 Watt Center Luminance Intensity (approximate): 800 cd
10 Watt Lighting Intensity at 3 Meters (approximate): 40 lux
20 Watt Lighting Intensity at 3 Meters (approximate): 80 lux