Review on Converter Supply Module Step Down Regulator by Randy Butler
Used to replace batteries.
working good for my use. I put this on the end of a USB cable and added USB ports to the battery door on some items I use frequently and got tired of changing batteries. It works great. And as a bonus, if the power goes out, I can use it with one of the batteries I already had for my cell phone while camping.
- 100% brand new and high quality USB Interface Multifunctional DC/DC 5-3.3V Step-down Module DC 4.5-7V Input (USB IN OR 2.54 Pin IN)
- No Power
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