Ten years ago, LED manufacturers produced only low-brightness indicator lights. But with the development of technology, new LED devices appeared, which in terms of brightness began to catch up with traditional electric lighting sources. The new, inexpensive, bright LEDs, while consuming relatively little energy, provide a complete replacement for incandescent bulbs. High-power LED light sources are an unavoidable alternative to traditional lighting methods using incandescent lamps and fluorescent CFLs, while providing 10 times longer life, lower maintenance costs and high efficiency. Every month, samples of more and more bright and powerful LEDs enter the market.

In the near future, bright LEDs will replace lamps in emergency lighting in public places and in transport - in airplanes, trains, cars. Indeed, already now, the development of technologies and the reduction in the cost of production have led to the fact that rather bright LED lighting of roads and streets is installed in China. Naturally, this gives significant energy savings. But powerful bright LEDs cannot work without special optics. A number of companies produce such optics for high-power LEDs, otherwise the light emitting from the LED will not have the same light angle as required. Many campaigns deal exclusively with LED optics. They produce a wide range of optical systems that match the products of leading LED manufacturers. There are optics with different directional patterns, including elliptical, as well as optics for three LEDs, which allows you to create RGB modules. The cost of good optics for one powerful LED reaches 5ue.

It is well regulated, but not by changing the voltage on it - this is absolutely impossible (!), But by the method of pulse-width modulation, which requires a special control unit or simply by adjusting the current. The PWM method consists in the fact that a pulse-modulated current is not supplied to the LED, but its frequency is several kilohertz, and the width of the pulses and pauses between them changes. This makes the brightness of the LED controllable.

Modern bright provide:

Large light output with small dimensions;
- absence of elements with high temperature;
- MTBF up to 100,000 hours, or 10 years of continuous operation;
-Energy consumption is reduced by 90%;
-high resistance to mechanical stress;
- wide color range of radiation;
-Lack of toxic substances in the LED.

I am very pleased with the rapid decline in prices for LED products. For example, a powerful bright 50-watt LED Edistar 50W, has fallen in price almost twice in half a year! A ten-watt Golden X can be ordered for just $ 10.