HomeAbout usService
Inquiry Blog Contact us

Delivery time
 Usually, our delivery time is 5 to 8 days after order confirmed

Payment methods
 Payment by wire transfers(T/T) ,Western Union and L/C would be appreciated

Customizing a lamp
Our products can be made subject to CE, UL, TUV,PSE,SAA standard to meet the electrical requirements of many countries.

 All of products,we provide 3 years warranty,at least use 30,000 Hours

The key factor of Led productí»s lifespan: the cooling technique

Heat dissipation problems is the main obstacle in LED development illuminated object, the use of ceramic or discharge pipe is an effective way to prevent overheating, but thermal management solution to make the rising costs of materials, the purpose of high power LED thermal management design is effectively reduced the thermal resistance between the chip cooling to the final product, Rjunction - to - the case is one of the material solution, provides a high conductivity, low thermal resistance but by chip attached or hot metal solutions to transfer heat from the chip directly to encapsulate the outside of the shell.

And, of course, the LED heat dissipation component similar to CPU heat dissipation, are made of heat sink, heat pipe, fan and thermal interface materials composed of air-cooled module is given priority to, of course, water is one of the hot countermeasures.At the current most popular large size LEDTV backlight module, 40 inches and 46 inch LED back light input power is 470 w and 550 w, respectively in view, 80% of them into heat needed around the heat dissipating capacity of 360 w and 440 w.

So how will the heat take away?At present the industry useful water for cooling, but with a high price and reliability concerns;Also useful heat pipe with heat sink and fan for cooling, for example Japan giant SONY 46 inch LED back light liquid crystal TV, but the fan power consumption and noise problems still exist.Therefore, how to design the cooling way, without the fan may be important to decide who can win the future.


Cooling Material selection

Thermal conductivity (Unit: W / mK)

Silver 429

Copper 401

Gold 317

Aluminum 237

Iron 80

Lead 34.8

1070 aluminum alloy 226

1050 aluminum alloy 209

6063 aluminum alloy 201

6061 aluminum alloy 155

Fin-Pure Aluminum 237W/mK,Fins is the best heat dissipation material for LED product

6063 aluminum alloy 201W/mK

Die-cast aluminum 100W/mK

To choose the material, in the hope that it has high heat and high heat transfer coefficient at the same time, as can be seen on, the silver, and copper is one of the best thermal conductive materials, followed by gold and aluminum.But gold, ginta too expensive, so the heat sink is mainly composed of aluminum and copper.Comparison, copper and aluminum alloy both have their advantages and disadvantages: the thermal conductivity of copper is good, but the price is more expensive, the processing difficulty is higher, the weight is too big, and copper radiator heat capacity is small, and easy to oxidation.Pure aluminium too soft on the other hand, cannot be used directly, all is the use of aluminum alloy can provide sufficient hardness, aluminum alloy has the advantage of low cost, light weight, but the thermal conductivity will be far worse than copper.