Indipro B-Stock products may show various signs of use, such as dents or scratches that do not affect product function. All B-Stock items have been quality tested and comes with a 30 day limited warranty. This Dual Sony L-Series Power Adapter is specifically designed for the Sony a7 Camera Series. This power adapter will extend your run time on your Sony a7 Camera by using two available Sony L type batteries. This system includes a hard-wired power cable with a Sony NP-FW50 type dummy battery at the end. As well as an additional 2.5mm DC jack at 14.4volt unregulated output for powering a second device. By connecting two Sony L-Series batteries (2x Sony NP-F970 type batteries) it will provide roughly 95 watts of power. The unit has a LED power reader to see the level of each battery. For easy mounting, this unit includes a 20 insert for mounting onto an adapter, cage or cheese plate. These solutions are extremely cost-effective for those who already own Sony L-Series batteries. Assembled in the USA.