-
Anonymous users2024-01-24This is my self-designed 5V light control circuit, which is characterized by simple and cheap, small and reliable, and has made many of them, which is relatively mature. See diagram below.
It is recommended to go to the electronics market to find a merchant to consult by the way, because even if I say a model, you may not be easy to find in the local area, because there are many models that can be used, and there are them in any market.
That's a chemical injury and should go to the hospital for an eye test.
LR --- alkaline.
SR --- silver oxide. >>>More
The resistor-capacitance step-down circuit in the figure is more dangerous because there is no isolation, it is generally suitable for low-power wicks or charging batteries, the size of the device on the circuit board in the figure is difficult to see the load 3W, it is recommended to consider the mobile phone charger plus LED driver plus LED scheme.
1. There will be no radiation at all, and air pollution is definitely indispensable, so it is recommended to put it in other places with smooth air.