Where is led Chips heat

Where is led Chips heat for high power industry light?

In the light industry, LED cooling is the biggest technological issue of LED light. Where are the led chips heat is generated?

For example, if there is a 1w led chip.

1) The conversion efficiency of the chip is generally between 60% and 70%, such as 66%, then 0.66 W is converted into optical power, and 0.34 W is converted into heat.
2) When 0.66 W of light energy passes through the phosphor layer, the conversion efficiency of the phosphor layer is only 60%, and nearly 40% of the energy is converted into heat. Assuming that the phosphor powder conversion efficiency is 63%, the output light energy is only 0.66 W X 0.63 = 0.416 W, and the loss is 0.244 W (converted into heat).

If the led is 100% sufficient power the output, the luminous efficiency of one unit of LED (35 A/cm2) can reach 414 lm/W, but the actual result is only 175 lm (0.416 W x 414 lm/W).

The light efficiency of 175 lm/W is also greatly reduced in practical applications. For example, the driving efficiency of a switching power supply can be more than 90%, but the IC power supply is generally around 80%, 175 lm/W x 0.8=140 lm/W. 20% of electricity is also converted into heat.

The heat generated by the LED is very large, so if choose bad poor radiator or IC driver for high power led lamps, the lifespan result isn’t satisfaction.

The energy created by LED chip is constantly spread to the air through the hull of the lamp. If LED cooling is not well, for the LED chip heat production is smaller, a bit of energy would be accumulated to ger the chip’s junction temperature quickly increased. If it always is in a longer period of high junction temperature, its life would be soon reduced. Specifically, the energy created by the LED chips is falling out from its metal heatsinks, the energy runs from the metal substance of the PCB and so to the metal LED heatsink s through the thermal paste. LED cooling of lamps is including hot conductivity and temperature dissipate these two components, there are just two ways to consume energy: Convection and emission.

For high power industry light, SMD technology is better than COB



Benefits of Led Industrial Light

  • Why Choose LED Industrial Lighting?

LEDs (Light Emitting Diodes) are small, high lumens efficiency, high CRI, compared with traditional HALOGEN Light. Led technology offers many additional advantages, such as exceptionally long lifespan, vastly reduced energy usage, lower maintenance costs, and increased safety.

  • Greater Efficiency

Led Industry light (140lm/w) have the double lumens efficiency than HALOGEN Light (70lm/w). Since LEDs use only a fraction of the energy there is a dramatic decrease in power costs, resulting in less frequent need for replacement. Although LEDs have a higher initial cost than the Halogen light, the cost is quickly recouped over time in lower electricity costs.

  • Longevity

LEDs have a lifespan of an average of up to 50,000 hours compared to 1,500 hours for Halogen Light. The long lifespan of LEDs will dramatically reduce maintenance costs and lower long-term operating costs compared to traditional Halogen Light.

  • Durability

Led Industrial Light is a Led chip setup into PCB Board linked with the driver, with die-casting Aluminum shell encapsulation. Stable and reach IP65 protecting grade.


  • Increased Comfort

In commercial use, LED lighting offers a softer, “daylight” option compared to fluorescent lighting, which can help to reduce eye strain and associated problems. They also produce light instantly when switched on, without any visible flicker.

  • Environmentally Friendly

LEDs are made from nontoxic materials, unlike fluorescent lighting which uses mercury, which can pose a danger to the environment. LEDs are also recyclable and widely considered to be environmentally friendly.

  • Safety

LED Industrial lights generate lesser heat than Halogen Lighting. LEDs reduce the potential for safety risks such as burns and fires.

  • Why choose Mosun LED Products?

As we make manufactory, we have complete control the best quality with moderate price. Want to see how we do it? Come and see us. We have own state of the design factory with the latest CNC machinery so if we haven’t done it before, we are certainly well equipped to give it a try. Led High Bay Light, Led Flood Light, Led Street Light with by far are what we do. As simple as that.