1. High-power LED spotlights structure, high power LED spotlight includes a housing, LED, PCB board, driver and base five parts. Shell is mainly responsible for the heat and protect the LED and the role of forming. High-power LED spotlights shell material in general are aluminum, good heat dissipation side of the first light-emitting lights, followed by quality lighter than other metals. Some housing for beauty, but also plated with chrome and nickel. High-power high-power spotlights, people often use the copper shell. Shell design is generally used in the design side of the fan-shaped LED lights around the edge of the price, which is surrounded by some of the blade housing is mounted extension body, the main purpose is to increase the cooling area, to improve the cooling efficiency. High-power LED spotlights on the market with only two, namely 1W and 3W are two, there are fewer manufacturers use 5W and 100W to do, but because of the heat can not be solved, basically there is not much market. PCB board is used to power LED cloth placed side by side, while playing the insulation between the LED and the housing and the heat conduction to the shell effect. There are two kinds of PCB board on the market, one is for general power LED PCB led strip light emitting side, the other is suitable for high-power CREE LED PCB board. Power led belong sensitive components, cooling and reliability are the main factors affecting the high-power LED applications, while using the high power led light source to pay attention to what the problem? Heat due to limitations of the semiconductor light-emitting diode chip technology, LED photoelectric conversion efficiency to be improved, especially in high-power LED lamp beads, because of its high power, about 60% of the energy will be converted to heat energy released (As semiconductor technology development, photoelectric conversion efficiency will gradually increase), which requires the end-user in the application of high-power LED product, cooling work to do to ensure high power LED products work properly. 1. Heat sink requirements. Shape and material: do not ask if the finished seal, convection can occur directly with the outside air environment recommended with aluminum or copper fin heat sink. 2. Effective heat dissipation surface area: For 1W high power LED white (other colors basically the same) Some use the unit heat sink, the total surface area to dissipate heat effectively ≥50-60 square centimeters. Recommendations for 3W effective cooling fins sum ≥150 cm surface area, higher power, as the case and test results increase, try to ensure that the heat sink temperature does not exceed 60 ℃. 3. Connection method: When high power LED board and heat sink connection please ensure that the two contact surfaces smooth, good contact side lamps, in order to strengthen the degree of integration of the two contact surfaces is recommended in the bottom of the LED board or the heat sink surface is coated with a layer of thermal Grease (thermal grease thermal conductivity ≥3.0W / mk), the requirements of thermal grease applied evenly, the amount and then screw fixation nip. LED lights led side _ side _ LED lights provide lighting from far away Lighting Technology Co., Ltd. Far Lighting Technology Co., Ltd. (www.ygzmkj.com) (www.ygzmkj.com) strong, credible, in Dezhou advertising lighting industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead away lighting and you work into the brilliant, for a better future!