One. Advantages
Compared to fluorescent lamps, LED fluorescent lamps have 10 major advantages:
1. High luminous efficiency: The luminous efficiency of fluorescent lamps is about 55-80 lm/W (the luminous efficiency of Philips T8 fluorescent lamps is 72lm/W), while the luminous efficiency of LEDs is above 90 lm/W. Some famous LED chip companies The luminous efficiency has reached 130 lumens / W, and will continue to improve in the future. The company develops fluorescent lamps with uniform illumination, no spots and high lumens. .
2. High efficiency of the luminaire: The efficiency of the luminaire mainly refers to the effective light efficiency. Generally speaking, the luminaire efficiency of the fluorescent lamp is only about 70%. And our LED fluorescent lamp is more than 90%. The T8 tube developed by our company has an illumination angle of 330°. LED light efficiency high mentioned that Philips' T8 fluorescent lamp has a luminous efficiency of 72lm/W, and 36W fluorescent lamps emit a total of 2592 lumens, but the luminous efficiency is only 70%, so the effective lumens are 1814.4 lumens, and the luminous efficiency of LEDs has exceeded 120lm / W, assuming 92lm / W, then as long as 18W can reach 1650 lumens, that is, as long as the power of nearly half of the fluorescent lamps can have the same brightness. Compared with the LED fluorescent lamps made by other manufacturers on the market, the illumination angle is only about 130°. The T8 lamp of our company is the angle closest to the fluorescent tube.
3. High power efficiency: Because all lamps except the incandescent lamp need to have a special power supply, the efficiency of the power supply affects the efficiency of the entire lamp. Take Philips' 36WT8 fluorescent lamp as an example. Its rated output power is 36W, but due to the access of the magnetic ballast, the measured input power is 42.4W, that is, the core inductance loss is 6.4W, the efficiency is reduced to 85%, most domestic iron core inductor power consumption Above 10W, the power factor is below 0.512. Our LED power supply efficiency is as high as 92%, and an 18W LED fluorescent lamp requires only 20W of input power. It saves more than half of the electricity compared to fluorescent lamps, which means that an 18-watt LED fluorescent lamp can replace a 36-watt fluorescent lamp. The output constant current precision is high, the power supply efficiency is high, there is no stroboscopic light, and the heat dissipation is fast.
4. Structure: This T8 tube is very different from the materials used in other T8 tubes on the market. Generally, the materials used in LED T8 on the market are PC cover and aluminum structure. There are several defects in aluminum structure. 1. Many of the cheaper LED lamps on the market use non-isolated power supplies. Everyone knows non-isolated power supplies. It is relatively low in terms of safety factor, easy to leak, and cannot be certified. 2. The aluminum structure will increase the weight of the lamp tube, which will easily lead to deformation of the lamp tube during transportation. 3. High production cost. The newly developed T8 tube structure of our company is all made of plastic. Many people may think of the plastic tube. The early LED tube used is a plastic tube. Because it mainly uses non-isolated power supply, in order to avoid electric shock, Therefore, it is more desirable to use a full plastic tube. Inside is the φ5 straw hat tube LED, and the light board is the glass plate. But it quickly proved that the light decay of this fluorescent lamp is very serious, and its life is very short. It will be broken in less than 1000 hours. Only then did I find that the biggest problem was the heat dissipation problem. Since the heat is completely sealed in the tube, it can't be dissipated at all, and the life of the straw hat lamp is short, and it is of course impossible to have a long life. Although our fluorescent lamp uses a full plastic tube, the heat dissipation problem has been completely solved. Our lamp board adopts aluminum substrate , LED adopts 2835 lamp bead, spontaneously developed power supply, high efficiency, no stroboscopic, low heat, whole lamp temperature, about 50°, internal power supply temperature is 70°. Finished product testing has been in place for 6 months.
Finished plastic fluorescent lamp test parameters
1. Initial testing of the luminaire,
1. Temperature rise curve;
Lighting test environment. Room temperature 28 ° C (air-conditioning greenhouse), lighting test 0-30 minutes of heating parameters (lighting temperature is about 30 minutes stable), T1 represents the temperature of the bottom of the lamp near the light board, T2 represents the surface temperature of the lamp, T3 represents the lamp head close to the power supply temperature.
The test parameters indicate that the fluorescent lamp has completely solved the problem of heat dissipation in the entire plastic tube.
Parameter test time 2013.01.12
2. Spectral analysis test, test parameters after turning on and after stabilization;
Just lit test report
Post-stabilization test report (30 minutes)
According to the test report of 2 test reports, all parameters are within the error range. For example, if the LED lamp itself is not well cooled, the lumen and power will be greatly reduced. Such a lamp will be lit for too long. Decay, color temperature, and longevity will all be greatly affected. This test proves that the fluorescent lamp cold test and stability test parameters are within the controllable range.
1. The test parameters include the basic parameter changes of the lamp for 6 months:
1. The air conditioning greenhouse is 28°C, the test parameter record of the previous month (tested once a week), and the error of the spectrum analyzer itself is 0.5% (actual error 1%-1.5%) after 5 months (15 days test), lamp temperature The test point is close to the light board, and the parameters are as follows:
Air conditioning integral test room:
According to the test parameters, the initial data of the luminaire is compared with the final data. The voltage and power are not measured by the spectrum analyzer. The luminous flux is about 1% of the light decay of 3000 hours.
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