
If you are interested in DIY testing instruments, you might want to take a look at this article.
If you happen to have a particularly heavy electric mosquito swatter that is very inconvenient to use, don’t rush to throw it away. You can dismantle the main board of the mosquito swatter and keep the board. If you also happen to have a waterproof box and a 3000V meter head, and you suddenly get an idea, you can make an LED light strip tester.
This is the circuit assembly diagram

First, you open the waterproof box opening and install the voltmeter and the test button.


Then you drill a hole on the top and install the test socket.

On the side, you cut openings to install the charging Type-C port, indicator light hole, and power switch.


Install the mosquito swatter main board and the charging boost integrated board.

Solder the test positive 1M resistor.

Solder all the wires and the battery.

Finally, test the no-load voltage at 2388V.

After assembly is completed, you can test an LED light board and find that the result is pretty good!
