High performance LED light engine requires linear constant current source efficiency up to 99%

1. What is a light engine?

The light engine is to make the constant current source and the light source on the same aluminum substrate, as long as it is fixed to the heat sink and the two power lines are welded to become the lamps.

2. What are the advantages of the light engine?

It can be said that the biggest benefits of promoting the light engine are as follows.

1) Reduce the R&D expenses of LED lighting manufacturers and shorten the production cycle

Because the optical and electrical specifications of all LED luminaires are set by the light engine manufacturer. Even the corresponding heat sink is recommended. Lamp manufacturers only need to install the light engine inside the radiator. Lamp manufacturers do not even need experienced optical and electronics engineers, nor do they need to purchase expensive optical and electronic equipment. In other words, the light engine can greatly reduce the entry threshold of the LED lighting factory, but it will not reduce the quality of the LED lighting. Of course, this requires the manufacturer of the light engine to have a very high level.

2) Promotion of light engine can greatly accelerate the promotion of LED lamps

In recent years, with the incandescent and ban on incandescent lamps, LED lamps are about to explode. LED lighting factories have sprung up like mushrooms. Although this is an inevitable trend, it also brings a lot of problems, especially in the quality of LED lamps and the disorderly price war between a large number of manufacturers. The emergence of LED light engines can solve such problems to a large extent. Because the quality is determined by several big manufacturers that produce light engines, the price is not likely to have much difference. This greatly reduces the internal friction caused by disorderly competition. Help the rapid development of the LED lighting industry.

3) Improve the overall performance of LED lamps

For example, the overall light efficiency (lm/W) is increased. Here, the overall light efficiency including power efficiency, such as color temperature, color rendering index, etc., can also be produced on demand. Moreover, it is possible to reduce power consumption and further save energy in the same luminous flux.

4) Reduced costs

At least the module of the constant current drive source can be omitted, and its production cost. In fact, due to the COB LED, not only the package is omitted. Production can also be highly automated, which greatly reduces production costs.

3. Switching constant current source is not suitable for light engine

Because the number of components of the switching power supply is too large, a large part of the light is blocked on the aluminum substrate. Moreover, because of the large number of components, the welding is troublesome, the probability of failure is high, and the reliability is lowered!

4. Ordinary linear constant current source is small but the efficiency is too low

At 220V, the efficiency is only 85%. The higher the mains voltage, the lower the efficiency. Many of the so-called "AC AC Light Engines" and "De-powered Light Engines" on the market today use this common linear constant current source.