There are many types of LEDs, varying in shape, color, brightness, power, etc. On the one hand, it brings more choices to consumers, but on the other hand, it also increases the complexity of the classification of LEDs.

LED lights have prospered the lighting market, so that consumers have more choices, LED, light-emitting diode, is a semiconductor device capable of converting electrical energy into visible light in the solid state.LED light source has the advantages of using low-voltage power supply, less energy consumption, high applicability, high stability, short response time, no pollution of the environment, multi-color luminescence and so on, although the price is more expensive than the existing lighting light source. This topic will introduce you to the advantages and disadvantages of LED, types, purchase, installation, cleaning and maintenance, fault repair and other related knowledge, I hope to help you understand LED lights.

Advantages of LED lights 

LED power consumption is very low, generally speaking, the working voltage of LED is 2-3.6V, the working current is 0.02-0.03A, it consumes no more than 0.1W. led lights usually life expectancy of up to 50,000 hours or more. led lamps do not contain harmful elements such as mercury and xenon, which is conducive to the recycling and and does not produce electromagnetic interference.

LED lamp price 

The cheapest LED lighting fixtures on sale in the market, nominal power 0.9 watts (brightness equivalent to 25 watts incandescent), the price is also 30 yuan, is the same brightness incandescent price of 6 times, ordinary energy-saving lamps twice the price. The LED desk lamp is often up to eight or nine hundred dollars, imported brands to thousands of dollars, is generally 10 times the price of desk lamps.

Causes of price differences in LED lamps and lanterns are brightness, anti-static ability, wavelength is consistent, leakage current, light-emitting angle, the size of the light decay, LED chip origin / size, colloid and so on.

LED lamp selection 

led products from large manufacturers in the lamp body workmanship above the more fine, led driver housing materials are also better, generally large manufacturers are used flame retardant materials. Generally large manufacturers will pass the European Union's CE and ROSH certification, you can let the dealer to provide these two certifications. Warm white led light shining at a distance of about 10-20 centimeters above the white wall, a good led product halo is very soft, the general led halo edge will have a very clear glare, the cheaper the more deep the glare is more obvious.