Review on DZS Elec Adjustable Electronic Stabilizer Tools & Equipment by Anden Turn

Works great but you need a way to get the voltage right before you start using it. It took a few turns of the adjustment screw for my boards to start registering the downward adjustment. If you ordered them and find they don't work, you may need to add a few turns of the adjustment screw before you see the reduction work. I have these little boards that work with a little USB. Camera, LED lamp and a few other small projects. Great for the price.