To purchase the LED lights, have you ever considered those questions
In facing of the great varieties of LED lights, their appearance are almost the same, but prices vary widely, how could we pick out the very LED light we required?
Is it better for a brighter one? Is it better for the light with a lower surface temperature? To get answers for those questions, having some knowledge on the LEDs characteristic and manufacturing process is necessary for us.
The very first matter for producing good LED products is well controlling their heat dissipation.
LED, is short for Light Emitting Diode, its lighting principle is the movement of the electron. While, at the same time it also produced heat. A high power LED of course will be brightener, but it also requires large drive current. Correspondingly, it will produce more heat which would damage the LED and accelerate the LEDs lumens depreciation when the LED light without a good heat dissipation capacity. Therefore, not the higher power and brighter LED products must are good products.
Solutions for this matter are, choosing reasonable drive current, well-dealing with heat dissipation, using adequate heat emitting materials. That is to choose low thermal resistance LED, high heat-conducting MC PCB and good heat dissipation materials as Light case. Here, the good heat dissipation material means material with enough surface area for heat emitting. As the heat is conducted through the contacting mental, so enlarging this area is good for enhancing the efficiency of heat conduction. Then, how to enlarge it? The surface of the mental looks smoothly, but it is uneven actually, filling good heat dissipation glue on the surface of the contacting area cant say it isnt a good way.
As LED products with insufficient heat emitting area, if their current still designed too large, which would easy to be damaged by the high heat, so that we may probably say a lower temperature on the surface of the light the better for the LED products. But wait, before making this definition, we need to confirm there's enough contacting area for heat emitting, the lower surface temperature happened may also caused by the heat that can't be transmitted out.
Another key point to produce good LED lights is choosing the right LED drive method. A right drive current means a reasonable temperature with light case.
LEDs characteristic decides the large power LED do not suitable for constant voltage circuit as when using voltage-stabilizing circuit, even the voltage fluctuate a littleincreased a little, the current passing through the LEDs will be increased a lot, so will the LED light, which finally turns out to be a damage to the LED.
Therefore, the constant current LED driver is the best option. Even if the voltage fluctuates, the current offered by the LED driver can still keep stable that the heat produced by LED will keep in a level. Meanwhile, as LED has a long life span and it produces large heat when working, so we need take the using age and effect of the heat on the components of the LED driver into consideration. A high efficiency LED driver can decrease the power consumption on the LED driver and make the products more energy-saving.
So that, judging a LED light is good or not cant directly through its surface, it requires large time for testing. Then choosing a responsible and well-experienced supplier is very important. Deshun Technology, established in 2001, with super ability to innovation and develop new products, which always devote their selves on high quality products. Believe Deshun Technology, he will be your faithful partner.
Deshun Technology Co., Ltd.
Address:18F West Tower, Haijing Center, NO.144 Huangpu Avenue, Tianhe District, Guangzhou, Guangdong , China
ZIP:510655
Tel:86-20-85626315
E-mail:sales@dosoe.net



