Involvement:Expert (understands the inner workings) - Ownership:more than 1 month
Step up AND step down. Efficient, no heat loss. Indicator light when working.
Screw terminals in and out, good markings +/-
Accompanying spacer nuts and bolts makes installing in metal encasement a breeze.
Good build quality.
None that I have found.
I have used this to make an emergency USB charger. With this I can connect ANY battery or combination of batteries and get a stable 5V output
Great for variable input power sources, charge your phone from your bike dynamo, maybe? (rectify first)
I have bought several, and they work as advertised
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