Waterproof DC Converter - DC 12V to 7.5V. Sony Camera Battery
Brand new, unopened.
Bought these to allow me to power my Sony A7S II from a 12V External Power Pack (after seeing this video on Youtube - https://www.youtube.com/watch?v=-aruyro1ufk ).
You'll need to get your own 'dummy battery', but this is the converter you need, and it works perfectly (as you can see from mine).
Below are tech specs from manufacturer.
Brand new and high quality With waterproof plastic case , very durable. protection against overcurrent is available and it can also work well under various bad environments. Do not miss! Color: black Housing material: plastic Size: approx. 36.2 x 25.5 x 21.2 mm Two blows of the mounting holes distance: approx. 42 mm Cable length: approx. 130mm Input voltage: 12V DC Output voltage: DC 7.5V / 3A Free USB slot package content:1 x power converters Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.