# Question: How Do I Connect 220v AC To LED?

## What happens if you put too much voltage through an LED?

Unlike incandescent light bulbs, LEDs won’t burn instantaneously (unless you apply too much current) but will instead kind of melt or whatever damage heat causes to the device.

Applying higher voltages could also affect the amount of current flowing through the LED because of Ohms Law..

## How do I know what voltage my LED is?

You could find the LED voltage by using a multimeter with diode function. 3. You could connect a battery to the LED and a potentiometer. Start with a high resistance on the potentiometer and gradually decrease it until you have an nice brightness.

## Do you need an adapter for LED lights?

LED strips, unfortunately, are not as simple as traditional incandescent light bulbs when it comes to installation and set up. Because they run on low voltage DC, they require a power supply device that converts 120V/240V AC (depending on your location) into the voltage signal that LED strips can use.

## How do LED lights work on AC power?

In their simplest form, these AC LEDs use a system comprising two long strings of LEDs, one powered by the negative side of the AC sine wave, the other by the positive. The strings of LEDs can deal with the high mains voltage because the combined voltage drop across all the devices is equal to the supply voltage.

## How do I connect 240v to LED strip?

Wiring a white LED strip (or any other strip of single-colour LEDs) couldn’t be easier. Simply connect your 240V mains supply (+ve and -ve cables) to the input terminals of your LED transformer, and connect your LED strip’s starter-lead (+ve and -ve again) to the transformer’s output terminals.

## What voltage do LED lights work on?

on LED datasheets. Typically, the forward voltage of an LED is between 1.8 and 3.3 volts. It varies by the color of the LED. A red LED typically drops around 1.7 to 2.0 volts, but since both voltage drop and light frequency increase with band gap, a blue LED may drop around 3 to 3.3 volts.

## How do you connect LED bulbs?

Unlike LEDs that are wired in series, LEDs wired in parallel use one wire to connect all the positive electrodes of the LEDs your using to the positive wire of the power supply and use another wire to connect all the negative electrodes of the LEDs your using to the negative wire of the power supply.

## Can AC LED run on DC?

Most LED lamps use a bridge rectifier which immediately turns the AC into DC, which the power converter then turns into the current supply that the LEDs use. So yes, they will run on DC of the proper voltage (not 12 volts).

## How do LED strips connect to mains?

To get your strip light working, connect the transformer / driver to the strip light ( extending the cable with 2 core flex if necessary). Then you connect your transformer / driver to the mains via a plug or direct to the mains and you’re away.

## Will a 12v LED run on AC?

To run an LED-based fixture from a mains supply (e.g. 120 V AC) requires electronics between the supply and the devices themselves to provide a DC voltage (e.g. 12 V DC) capable of driving several LEDs. A new approach is to develop AC-LEDs, which can operate directly from an AC power supply.

## What resistor do I need for LED?

Basics: Picking Resistors for LEDsPower Supply VoltageLED ColorResistor (calculated)4.5 VRed, Yellow, or Yellow-Green36 Ω4.5 VBlue, Green, White, or UV48 Ω5 VBlue, Green, White, or UV68 Ω5 VRed, Yellow, or Yellow-Green128 Ω4 more rows•Aug 29, 2012

## Why do I need a resistor with an LED?

Why do you need a resistor with an LED? The short answer: to limit the current in the LED to a safe value. The long answer: LEDs are semiconductors, diodes in particular. The current flowing in an LED is an exponential function of voltage across the LED.

## Can LED strips cause fire?

The worst thing that can happen is the LED Strip can get very hot and begin to burn whatever it is fixed to, if it is a flammable surface such as timber, the outcome can be disastrous. At best the Strip can have LEDs fail due to poor voltage and current control.