Our D-TAP battery adapter are new to the Patona range. These were developed to extend battery life. This gives you the option of operating your conventional camera with a D-TAP output source regardless of a fixed power source. Suitable batteries with D-TAP OUTPUT are, for example, V-Mount, Goldmount or Sony BP-A65, BP-U50, BP-U68 or BP-U100 battery and much more .. Furthermore, the adapter can be used in monitors and LED lights in which A battery from the Sony NP-F series is used. Technical data: Input D-TAP: 14.8 volt output: 7.4 volt cable length: approx. 120 cm This battery adapter replaces the following original accessories: VP-NPF