The Series 7 S7-XLHL-L is an adapter plate for Canon XL-1, XL-1S, XL-2 and XL-H1. This adapter plate allows the previously mentioned camcorders to use the Series 7 battery system. This plate attaches to the camcorder via the battery mount allowing a Series 7 SL-50 to power the camcorder. This model comes with an on camera light connection.