I was using this as a video light for a professional camera, but I haven't used it much because lights are not allowed in many places. I believe Sony has discontinued the production of the XB-20DX halogen replacement lamp, so I would like to sell this in a set of two. This product has a 10W/20W switch and a color temperature of 3000K. Batteries are not included, but it can be used with NP series F960-970 batteries. Please refer to Sony's website for detailed instructions.