There is a wide variety of LEDs, differing in shape, color, brightness, power, and other aspects. On the one hand, this brings more choices to consumers, but on the other hand, it also increases the complexity of LED classification.
The LED lamp has revolutionized the lighting market, offering consumers a wider range of choices. LED, or light-emitting diode, is a solid-state semiconductor device capable of converting electrical energy into visible light. LED light sources boast several advantages, including the use of low-voltage power supplies, low energy consumption, strong applicability, high stability, short response time, environmental friendliness, and multi-color emission. Although they are more expensive than existing lighting sources, this feature article will introduce you to the pros and cons, types, purchasing, installation, cleaning and maintenance, fault repair, and other related knowledge of LEDs. We hope this will help you understand LED lamps better.
Advantages of LED lights
LEDs consume very little power. Generally speaking, the operating voltage of an LED is 2-3.6V, and the operating current is 0.02-0.03A, with a power consumption of no more than 0.1W. LED lights typically have a lifespan of over 50,000 hours. LED lights do not contain harmful elements such as mercury and xenon, making them conducive to recycling, and they do not generate electromagnetic interference.
LED lamp price
The cheapest LED lighting fixtures currently available on the market, with a nominal power of 0.9 watts (equivalent in brightness to a 25-watt incandescent lamp), cost 30 yuan, which is six times the price of an incandescent lamp of the same brightness and twice the price of an ordinary energy-saving lamp. However, the price of an LED desk lamp often reaches up to 800 or 900 yuan, and imported brands can cost over a thousand yuan, which is 10 times the price of a regular desk lamp.
The reasons for the price differences in LED lighting fixtures include brightness, anti-static capability, consistency of wavelength, leakage current, emission angle, light decay, origin/size of LED chips, and colloids.
LED light selection
LED products produced by major manufacturers are relatively fine in terms of lamp body workmanship, and the materials used for the LED driver housing are also of good quality. Generally, major manufacturers use flame-retardant materials. Most major manufacturers have obtained CE and ROSH certifications from the European Union, and they can provide these two certifications to distributors. When warm white LED light shines on a white wall at a distance of about 10-20 centimeters, good LED products produce a soft halo, while ordinary LEDs have a very clear blue halo at the edge. The cheaper the LED, the deeper and more obvious the blue halo.