You will receive a power switch in the box with adjustable on and off voltage. The box is built on the LNK304PN chip. This chip requires an input voltage of 85 V (AC) to 265 V (AC). Otherwise the switch will not work. I have not experimented with direct current (from 170V?). So you plug in a power cord (110V - 240V), probably from an outlet to the input, and the SRD-12VDC-SL-C relay switches your output power on or off. You need to disassemble the box, the IN and OUT description is on the back of the board. Then you need to connect your power converter to the output, for example AC120V/DC25V. Depends on your project. Now the box has another input as a voltmeter. So you connect your control object to this voltmeter. button settings. A short press gives you the currently set value. Left button favorite. The upper value of the right button. A long press allows you to continue setting the values. The box will turn on for the interval you set. The box turns off outside of your interval. What I don't know is that the LNK304PN IC has current drive capability. Does this box have this option?
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