Cheap Lighting Solution(LED Light)

If you have some spare white LED's & want to do something with those then it's excellent to build a lighting system with low heating and low power consumption with bright light.It doesn't requires any type of heat sink.

* 24 white high intensity led(You can use any no of it but then you have to consider the power consumption of it and according to it use resistors with suitable wattage)
* PCB (if available) otherwise protyping board
* Old USB type mobile charger
* Any USB cable
* Resistance

Just create a 3x8 led matrix as shown. All LEDs are connected in parallel.

Just connect the positive and negative power supply wires of the usb cable with the anode and cathode of any one of the LED ( since all led are connected in parallel) respectively.

Connect the usb cable with the mobile phone charger. That's it !!! nothing else to do.

Just connect the mobile charger with the mains and enjoy cheap lighting solution with low power consumption. It doesn't requires any type of heat sink.