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 inside the heat sink, and then solder two power lines to become a light fixture. So, what are the characteristics and advantages of the light engine? This article will work with you to discover the light engine stories you don't know.
Light engine, you don't know anything!
It can be said that the biggest benefits of promoting the light engine are as follows.
1. Reduce LED manufacturers' R&D expenses and shorten product 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 barriers to entry for LED luminaires, but it will not reduce the quality of LED luminaires. 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 and its production cost can be omitted. In fact, due to the COB LED, not only the package is omitted. Production can also be highly automated, which greatly reduces production costs.
Switching constant current source
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!
Ordinary linear constant current source
Low component count but low efficiency
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.
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