Can adjustable speed power tools use direct current?
There are two kinds of speed control electric tools, one is using 220V alternating current, and the other can not be replaced by direct current;
The other is a rechargeable battery, which is powered by a low voltage direct current battery,
So you can be replaced by low voltage DC power, is to use the 220V (alternating current transformer into low voltage alternating current, then the low-voltage alternating current into low voltage rectifier DC, so that you can receive this up using electric tools.
