Quick Answer: Can I connect LED strip lights to mains?

What happens when an LED is directly connected to a power supply?

When LED is connected to a power supply with a voltage higher than its forward voltage, a current limiting resistor is connected in series with the LED. The current limiting resistor limits the current for the LED and regulates the difference in voltage drops between the LED and the power supply.

What power supply do I need for LED strip?

The LED strip has a power consumption of 14W / m. 14 x 8.5 = 119 Watts in total. So you need a LED power supply (sometimes referred to as a LED driver) that can deliver at least 119 Watts.

Can I power 12V LED strip with USB?

So, in short: no. If your LED strip needs 12V, you need to connect it to a 12V power supply, not a USB port. … As @dandavis suggested in the comments, if you really want to power it from USB, you can get a 5V->12V step-up converter to get 12V from your USB supply.

Can you hook an LED directly to a battery?

Five-volt LEDs can be connected to a nine-volt battery, but an external resistor is also needed in order to drop the voltage to the five volts required.

Can you over power LEDs?

Yes it is possible to safely overdrive an LED circuit, but since more energy is still lost to heat within the circuit, the efficiency of the bulb is substantially lowered and the lifespan of the bulb is reduced.

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