LED battery test paper

LED battery test paper

We don't want to discard the waste batteries. Because of the coups circulating in the market: Combine two old waste batteries (such as an electronic wall clock) and you will be able to support them for another few weeks! This is actually not a very good suggestion, but the point is that there are many people doing this! But remember to bring a power test strip. This bauble has a small OLED screen and a light, smart display that tells you how much power is left in the battery. In this way, you don't have to worry about combining two used batteries.
Designer:Wang Gang

stone crafts

The history of stone carving begins with the origin of human art. It can be said that there is no art form that is more ancient than stone carving, and there is no art form that is more popular and lasting. The history of stone carving can be traced back to the middle of the Paleolithic Age, which is about 120000 years ago. Since then, stone carvings have been handed down to this day.

Stone Crafts,Wexford Stone Crafts,Natural Stone Crafts,Stepping Stone Crafts

The universe in the stone is great , https://www.zdsarts.com