We usually divide the light source technology into three generations: the first generation of heat radiation source, the second generation of gas discharge source, and the third generation of solid state light source, which is also LED.
The first generation: heat radiation source
From incandescent lamps to CFLs, there is no doubt that there is significant energy savings.
But now we can say that LEDs are several times more energy efficient than fluorescent lamps than metal halide lamps? It seems that no one dares to say this, as if selling LEDs is still more energy-consuming than halogen lamps. Even so, even if it is not energy efficient, LEDs are still revolutionary.
The simplest, and probably the earliest, and now the biggest cabbage in China, is the LED strip. We take the product parameters of a Japanese brand as an example (Taobao explosions, highlights, super bright, super bright, 5 yuan, one meter, one meter, one meter, one thing, we don’t care anymore), 10W LED strips per meter, light effect About 60lm/w, this is not comparable to a straight tube fluorescent lamp. However, after being associated with the application scene, it is obvious that the current hotel ceiling light trough will not be equipped with straight tube fluorescent lamps or cold cathode tubes, all of which are LED lights.
Probably no one would say this: "Hey, your LED light has no luminous efficiency, no fluorescent light, not enough energy, so I don't buy it." Because the LED is a directional 120° light, in this scenario, we It will be found that a part of the so-called high-efficiency light of the straight tube fluorescent tube 360° is actually wasted, and the final LED strip can replace the straight tube fluorescent lamp with a lower power and less energy-saving light effect number.
Of course, in addition to the application environment of the ceiling light trough, the LED strip has more advantages: flexible bendable, splicing, cutting, color, etc. These are nightmares for fluorescent lamps.
120° illumination is one of the main features of LEDs, and it is very useful in functional luminaires, in addition to being helpful in decorative LED strips.
For example, we want to get an ultra-narrow beam angle. If you use a halogen lamp bead (of course, the nonsense fluorescent lamp can't do it...), you need to calculate a parabolic reflector surface, grab the light from the lamp to the reflector, and turn it into parallel light. At the same time, it is necessary to cover the light in the outward direction of the lamp bead to avoid affecting the light distribution curve (refer to the structure of QR111, the principle of metal halide lamp is the same).
The use of LED light sources allows all optical paths to be designed in TIR lenses, resulting in a simpler structure and smaller size (of course TIR is still very complex...). These are not related to "energy saving", but ultimately they are very helpful in the installation and use of finished lamps and application scenarios.
In addition, LED lamps have higher optical system efficiency, beam efficiency, intelligent regulation, instant start, color, and color rendering performance compared to downlights and spotlights that use metal halide lamps. In terms of color rendering performance, according to the current Ra, Ri system, the color rendering index of the LED can exceed the metal halide lamp, close to the halogen lamp, and his potential is almost no upper limit.
There is an article in the micro-classroom that introduces some innovations in color performance of LED light sources in commercial store lighting. We can make an extreme assumption. If an LED track spotlight can better express the color of clothing or food, but it costs 5W more than a 35W metal halide lamp, does this matter?
In addition to the properties of beam angle and light color, the small size of the LED is also a big advantage. For example, the pole lamp in the jewelry showcase used to be a pole with MR16, which can now be replaced with a small-sized LED, and the luminaire is only 3.5mm wide. As for the power, it is not too important to reduce from halogen 20W to LED 10W, 8W, or 4W, 2W.
If the application scenarios listed above are all LEDs are replacing traditional light sources. So what better reflects the characteristics of LED luminaires, perhaps those that have been newly developed because of LEDs, such as building facade lighting.
At the beginning, we replaced the original gold halide floodlights with spotlights using LED light sources. Later, we found that LEDs and metal halide lamps are not the same size, so we can make LED lamps directly installed in the building. Surface structure. If it is more energy-consuming, it may be a lighting system such as a floodlight, but the effect is completely different. Therefore, most of the skyscrapers currently covered are using such a building facade lighting system that may have a larger overall energy consumption but different effects and can only be completed by LEDs.
Finally, in addition to these lighting properties, the most essential difference between LEDs and traditional light sources is the diode, which is an electronic device. LED lighting equipment will eventually become a digital product. The intelligent regulation of LEDs will be far from what we now call phase-cut dimming, 1-10v dimming, DALI dimming, etc., but you can’t imagine What will it be?
So, don't say that LEDs are energy efficient.
LEDs are not used to save energy, but to revolutionize.
Molded Waterproofing Cable Assemblies
We specialize in waterproofing products overmolding. We can custom build, custom mold, and over-mold your cable designs.
We specialize in molded cable manufacturing for the widest diversity of
cable and connector types, across the whole spectrum of industries. Rich expeirence in developing and proposing solution Special for IP67, IP68 waterproofing products.
Molded waterproofing cable assemblies, waterproof wire harness, waterproofing cables overmolding
ETOP WIREHARNESS LIMITED , http://www.wireharness-assembling.com