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Lori is a professional supplier of LED cooling solutions and LED heat sink manufacturers. LED lighting heat sinks are various, the common types are extruded aluminum led heatsink , LED sunflower heat sink, die-casting led heatsink, stamping led heatsink,cold forged heat sink，skived led heatsink and so on. LORI has rich experience in high power LED heat dissipation. Currently, Lori has provided LED cooling solutions for LED street lights, greenhouse vegetable LED lights, LED projection lights, car lights, tunnel lights, solar street lamps and so on. Lori led heat sink, led heat sink extrusion types as following

Stamping led heat sink: Stamping led heatsink is a forming and processing method that relies on press and mold to exert external force on plate, strip, pipe and profile to produce elastic deformation, plastic deformation or separation, so as to obtain the required shape and size of the stamping led heatsink .Stamping and forging belong to the same plastic processing (or pressure processing), collectively known as forging. Stamping materials are mainly hot and cold rolled steel and steel strip. Compared with die casting led heat sink and forging heat sink, stamping led heatsinks are thin, even, light and strong. The quality of stamping led heatsinks are very small, the material utilization rate are high and the production efficiency are high.

Typically, the design of your LED application restricts the size of a heat sink, causing the heat sink to be inadequate for complete cooling.  Other ways to help cool your LED can be active convection or forced air.  Forced air can significantly improve cooling, in some applications active cooling can account for 40-percent of the cooling. Due to the natural forced air cooling of cycling, many LED bike light are applied with inadequate heat sink sizes. Under water applications is another case where a heat sink can be under-sized, as typically the water temperature is low enough to act as one large heat sink.

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That's a good question - excess heat will degrade your LED and greatly lower light output. In general, we recommend a conservative 3-square inches of heat sink surface area per watt; a single high power LED driven around 350mA is generally around 1-watt.

Heat sink used with LED is designed to absorb and disperse excess heat away from the LED diode and into the heat sink. Passive or active air circulates around the heat sink to help cool it. Too much heat can damage LED phosphors, this results in lower light output, color changes and or a significant decrease in life expectancy.  Unfortunately, the most common problem we see in LED lighting applications is that the heat sinks are too small or not at all.  To avoid these thermal problems we provide a wide variety of LED heat sinks below, which include: anodized extruded linear heat sinks, LED housings, LED light engine housings, small finned heat sinks. To learn more about LED heat sink take a look at this article here.

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B. PRM Limited Warranties are applicable to PRM branded products, non-transferable, and warrant against manufacturer defects in workmanship and materials under normal use for 1 year after the date of the PRM invoice unless otherwise stated. If PRM approves the product is accepted for return during the limited warranty period, PRM may repair, replace, or refund the amount paid by the customer.

Cold forged heat sink:  Cold forged heat sink is made by steel, aluminum alloy sheet stamping, pull to rise, make a cup of tube type of led heatsinks, cold forged heat sink inside and outside perimeter smooth, LED cold forged heat sink commonly used aluminum alloy material is AL5052, AL6061, AL6063, the quality of cold forged heat sink is small, high material utilization, high production efficiency, is a low cost solution. This process is mainly used in the manufacture of LED light heat sink.

The style of the fin of the LED heatsink significantly affects its ability to release heat into the environment. However, the shape of the led heat sink fin usually depends on the shape of the heating part. For example, in contrast to a flat-finned heatsink, an appropriate design would use a radial finned style when cooling the cylindrical shape.

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Extruded aluminum led heat sink: This extruded aluminum LED heat sink is formed by aluminum extrusion, and by CNC machining, embedded in heat pipe, and finally finished by surface treatment.  Extruded aluminum Led heatsink is liquid aluminium formed through a fixed mold. Then cut the led heat sink aluminum profile and mchined into the desired shape. The post-processing cost is high, and the fin can be made very thin to increase the heat dissipation area. When the led heat sink works, air convection diffusion heat automatically formed, and the heat dissipation effect is good. Common materials used in aluminum extrusion are AL6063 and AL6061.

In general, you will find metal alloys used in heat sink led because they have high thermal conductivity (equal to low thermal resistance). Thermal conductivity is the ability of a material to transfer heat through itself, which allows it to transfer heat efficiently from a low surface area environment to a high surface area environment. Copper has a thermal conductivity of 388w/mC, while "optimal" aluminium 6061 has a thermal conductivity of 180w/mC. As a result, copper is more than twice as efficient at transmitting heat through itself.

One of the key parameters of the LED heat sink is the material that makes up the heat sink. In order to effectively remove heat from the heating components, the heat sink for led

If you are looking for an led heatsink for your application, there are several important led heat sink design factors to consider before customizing the led heat sink. When customizing and designing appropriate heatsink for led, we will keep the following important heatsink parameters in mind.

The metals with the best thermal conductivity, from high to low, except for thermal resistance, are silver, copper, gold, and aluminum. Copper and aluminum are the most commonly materials used in heat sinks, but copper is more expensive, heavier and has a higher melting point, making aluminum is the most material used in LED heat sinks.

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must have a high thermal conductivity. Some of the common materials for led heat sinks are aluminum and copper. Lower-grade heat sinks can also be made of stainless steel or other metal alloys, and these materials are also more cost effective in larger sizes or for the led heat sink price.

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2.5" VACUUM GAUGE;0 TO-10 inHg; 0 TO -140 WC; 1/4" NPT BACK CONNECTION; SS CASE; BRASS INTERNALS & FITTING; LIQUID FILLED

Die cast aluminum led heat sink: Die casting led heat sink  is a kind of pressure casting parts, it is to use the die casting machine, which installed pressure casting mold, the heating for liquid copper, zinc, aluminum or aluminum alloy into the mouth poured into the die casting machine, die casting machine die casting, casting the shape and size of aluminum or aluminum alloy parts, such parts are usually called aluminum die casting. Die-cast aluminum heat sink  for led are generally large in size, with irregular design and controllable production cost. The led heatsinks cannot be made very thin, so it is difficult to maximize the heat dissipation area.The commonly used die casting materials for the LED heat sink  are ADC10 and ADC12.

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C. Non-PRM branded products retain their manufacturer's warranty. Customer should contact the manufacturer for warranty service.