Step 1: To Do a USB Flashlight You Need!

Step 2: A Very Easy Way to Make Necessary Household Device – Flashlight.

Step 4: Insert Our Flashlight to the Computer USB Connector and You Can Work at Night!

Step 5: to Avoid Burning of LED You Should Select Nominal Appropriate Voltage for USB 4,5-5V, or Add to the Scheme Line-dropping Resistor With Resistance of 100 Ohm.

Step 6: Pleasant Viewing!

About This Instructable




Bio: https://www.youtube.com/dashboard?o=U
More by romanursuhack:How to Make a Candle in 30 Seconds How to Make a Mini CANNON With a Screw-bolt / Tutorial Mega CRAZY Experiment With a Watermelon 
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