Introduction: How Much Voltage Can 10W LED Handle

I came across a question- how much voltage it takes to kill 10W 12V LED. So i took my 50V power supply and tested the LED. I bought these LEDs at ebay for very cheap. One segment in LED started glowing at about 5.5V, I kept rising the voltage. I came to 15V and current draw was about 0.7-1A. I kept rising voltage slowly. At about 22V LED started to lose it's brightness permanently. I got to 50V and LED was glowing just a bit and drawing almost no current. I couldn't go to higher voltages because my power supply can only deliver 50V. And LED kept glowing at 50V and not losing brightness. As i turned off power i seen dark spots on LED where separate LEDs are. Photo is below:

Step 1: Dark Spots on LED

Picture of Dark Spots on LED

Conclusion is that you can connect 12V LED in car where is 14V and nothing will happen to LED.

Comments

About This Instructable

254views

2favorites

License:

Bio: I just love electronics! Visit my youtube channel https://www.youtube.com/user/TestasChannel
More by Testas.T:How Much Voltage Can 10W LED HandleMetal Melting High Voltage Flyback Transformer With NE555 DriverArduino Says: Hello world!
Add instructable to: