Sony HVL-20DW2 Video Light for use with DCRVX2100, HDRFX1 & FX7 switchable To 10w Or 20w 10w-20w Operation Requires Np-f750 Infolithium L-series Battery Sony Hvl20dw2 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 The battery is sold separately. (The light requires NP-F770 or NPF970 infoLITHIUM battery)