How to make Power-OFF Protection Module Automatic Switching UPS for your home WiFi Router. Materials Required: 1. Power-OFF Protection Module Automatic Switching Module UPS Emergency 12V to 48V - 2. 100x60x25mm Project Box Enclosure - 3. DC Power Socket x3 - 4. 3mm LED Holder x2 - 5. 3mm LEDs Red & Blue - 6. 2-Pin Plastic Button ON/Off SPST Switch - 7. Three-wire 0-100V Digital Voltmeter - 8. 1KΩ Resistor x2 9. Wires Red & Black 10. XL4015 5A Power Supply Step Down Module (New Version) - DIY Tools used: How to make hot knife cutter - Subscribe LahisTech: Subscribe for more future creative project videos. Thank you.