Contents
How do LED lights get their power?
An LED bulb produces light by passing the electric current through a semiconducting material—the diode—which then emits photons (light) through the principle of electroluminescence. Don’t let that big word scare you! It essentially means that a material (in this case, the diode) casts light when power is applied to it.
How much power do LEDs use?
The electricity used by a light bulb is measured by KWh. An LED bulb uses 127.5KWh over its lifespan of 15,000 hours. Incandescent bulbs used for 15,000 hours (for theoretical purposes; an incandescent bulb cannot last that long) will use up 900KWh of electricity.
How to calculate power in an LED circuit?
How to Calculate Power in an LED Circuit. In this article. By Cathleen Shamieh. The amount of energy consumed by an electronic component is known as power (abbreviated P ), measured in watts (abbreviated W ). Here is the equation for calculating power: P = V x I. where V represents voltage and I represents current.
Do you need a constant current power supply for LEDs?
You will either need a constant current LED driver or a constant voltage power supply (or a combination of both) in order to make your LEDs work properly. There are many different factors to consider when choosing a power supply for LED lighting. This post will go through those many factors and help you select the right power supply for your LEDs!
How are LED lights connected to the power supply?
LEDs can be connected directly to them without inefficient current-limiting resistors, because the power supply’s internal control circuit handles any necessary current limiting, as the name suggests.
What kind of power supply do Cree LEDs need?
Say we have six Cree LEDs running off of a Mean Well LDD-H driver. Each LED runs at about 3.1 volts. With six of these our total voltage in this series circuit would be 18.6VDC. Typically, low voltage drivers like the Mean Well LDD-H work better if you have a small cushion over the voltage they require.