How to effectively improve the quality and life of LED lamp beads?

In order to ensure the quality of the product, the enterprise in the choice of LED lamp beads usually spend higher costs to choose high-quality lamp beads, but always can not reach the ideal life or light decay more than expected is how it is?

Although the quality of led beads directly affects the life and light failure of the beads, but there are many other factors also affect its life and light failure all the time.

Previously we talked about the impact of voltage and current, today I talk about the impact of heat dissipation on LED beads. 

Heat dissipation is a problem that many LED beads are facing all the time, we all know that a LED bead wants to achieve enough brightness, we need a high enough power and a certain number of beads. When the power and quantity go up, the temperature of the lamp beads and their working environment will rise extremely fast (some people may have some questions here, about whether LED lamp beads are cold light source or hot light source? Cold light source is not the right heat? A simple explanation of the LED bead light-emitting principle is a cold light source, because the heat generated by its light is very low. (The reason for its heat according to the law of conservation of energy: the electrical energy imported into the LED beads can not be fully converted into light energy, the remaining part will be converted into other energy energy, mainly into the heat, see "law of conservation of energy" below). The good lamp beads can not work in a high temperature environment for a long time, when the temperature reaches a value for a long time, it will affect the LED lamp beads and chips, resulting in light decay, or even damage.

Now there are mainly the following cooling methods.

Aluminum cooling fins: This is the most common way to dissipate heat, aluminum cooling, fins as part of the shell to increase the heat dissipation area.

Fins
Aero-hydrodynamic heat dissipation: Aero-hydrodynamic uses the shape of the lamp housing to create convection air, which is the lowest cost way to enhance heat dissipation.

Surface radiation treatment: The surface of the lamp housing does radiation heat dissipation treatment, simply by applying radiation heat dissipation paint, which can carry heat away from the surface of the housing by radiation.

Use of fans: The internal lamp housing with long-life high-efficiency fan to strengthen the heat dissipation, low cost, good results. However, to change the fan is more trouble, but also not suitable for outdoor, this design is less common.

Through the heat pipe: the use of heat pipe technology, the heat from the LED chip to the shell cooling fins. In large lamps and lanterns, such as street lamps is a common design.

Thermally conductive plastic shell: Filled with thermally conductive materials during plastic shell injection to increase the thermal conductivity and heat dissipation of the plastic shell.

Use of liquid bulb: Using liquid bulb encapsulation technology, a transparent liquid with high thermal conductivity is filled into the bulb of the lamp body. This is in addition to the principle of reflection, the only use of LED chips out of the light surface thermal conductivity, heat dissipation technology.

The law of conservation of energy (Law of conservation of energy) is one of the universal fundamental laws of nature. Generally expressed as: energy will neither arise out of thin air, nor disappear out of thin air, it will only be transformed from one form to another, or transferred from one object to other objects, while the total amount of energy remains unchanged. It can also be expressed as follows: the total energy of a system can only change by the same amount as the amount of energy transferred into or out of the system. The total energy is the sum of the mechanical energy, internal energy (heat) and any form of energy other than mechanical and internal energy of the system. If a system is in an isolated environment, i.e., no energy or mass can be transferred into or out of the system. For this case, the law of conservation of energy is expressed as follows: "The total energy of an isolated system remains constant.