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led strip light - China Manufacturer
Thank you for inquiry my led strip light, Tel:+86-574-87641051 E-MAIL:sales@everlightings.com
http://www.everlites.com/led-strips/
1, heat
Poor heat of the LED is well known, will inevitably bring the wick life. The design of the existing garden led lights lights tend to heat difficult to meet t he requirements in the field of a heat dissipation is very demanding, but with very poor passive cooling, and is air-cooled, or even a closed air-cooled. As some lamps with plastic sleeve between the driver board and the aluminum heat sink to increase the reliability of insulation, irrigation cooling silicone to increase the cooling capacity. T8 lamp tube is closed, the wick can only rely on air convection heat transfer to the lamp on the back of the aluminum tubes for cooling. General, the internal temperature of these lamps will have seventy to eighty degrees. And if we take into account the heat, weight problems; take into account the weight, heat dissipation is difficult to guarantee, this dilemma of choice in the existing design, there is no feasible standard.
2, life expectancy
LED wick life was index decreased; electrolytic capacitor temperature is increased by ten degrees lower life expectancy in half; the MOS temperature, resistance increases, loss increases, the temperature will rise (constant current mode) with increasing temperature, and ultimately burned . Of course, the domestic manufacturers did not give a specific LED lamp life, and propaganda of the time just mentioned LED wick life of 100,000 hours LED life of bottlenecks in the system driver board LED wick is not damaged, the system drive has hung up.
Another LED light decay is very serious, so the life of the lamp should also consider the visual experience, after how long the brightness of the lamp to reduce the dark feel to the visual extent that life, and customers will consider the replacement of lamps, this life is that manufacturers do not have to come out (or there is no way to give), but it is very important.
Again, the majority of LED home lighting by size limits, protection is difficult to do well, in the voltage fluctuations, severe interference region, the existing low-power design is a test.
Most important, the life of the LED and the company s life is proportional to two years if the publicity 10 years of LED lamps bad six months ago, the company has closed down, the user will take the risk?
3, the weight
The screw interface lamps, fluorescent light weight of only one of the LED lamps, due to the heat sink, the weight of the fluorescent lamp holder who can be negligible, but the weight of the LED lamp holder is a very serious test, particularly the 7.8W spiral interface outdoor light fixtures lights, its weight is very dangerous, which is what businesses have to consider?
4, the price
The LED driver board in the temperature of 70 degrees may be a life of only five years (home), far from reaching 10 years of "concept" of the LED wick compared to the same brightness of the fluorescent, even fluorescent la mps for only one year life. 1W1 element of fluorescent lamps is much much more cost-effective than the 1W10 $ LED. Damage to the LED lamps are often the wick is not bad, have the entire lamp replacement. Calculate the tenth driver board have to discard the remaining nine tenths of the lamp (wick and the heat sink accounted for most of the cost of the entire lamp), if each vendor did not do a good job recycling customers do not like the product.
5, efficiency
Some people may be very strange, LED energy-saving products, why should consider the issue of efficiency? I mentioned here a PF value, a system efficiency. As the majority of the existing LED design are low power, cost pressure to the use of passive PFC (valley-fill), the PF may be up to 90, far less than the efficiency of active PFC easily 99 countries replaced with LED very close to the luminous efficiency of fluorescent lamps is a pressure.
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