Sony HVLIRM Battery IR Light for DCR-DVD101, 201, 301, 105, 205, 305, 405, 505, DCR-HC21, 32 42, 26, 36, 46 & 96 Camcorders Extend the range of Nightshot system from 10 feet to 100 feet Infrared emission for shooting in total darkness Adjustable light output Powered by 2 AA batteries or InfoLithium M series battery packs