1. What is the heat sink of growing plant light
Plant growth light heat sink mostly use skived fins heat sink radiat. Skiving fins heat sinks are manufactured by precisely slicing the top of the base, called skiing, folding it back to where it is independent to the base, and repeating at regular intervals to create fins.
Compared with other heatsinks, the skiving fins heatsink has a larger surface area. The larger the surface area of the heat sink, the better of heat dissipation effect. However, there still needs to be enough space between the fins to allow air to pass through, so as to create a temperature difference between the fins and the air. When the heat sink is too close, the air between them will not cool and will become almost the same temperature as the heat sink, which will prevent heat transfer. Therefore, more cooling fins do not mean better cooling effect. The well-spaced cooling fins is better.
2. The finish of heat sink
The surface of the heatsink radiator also has a direct impact on the thermal conductivity. A painted surface actually works better than a bright, unpainted surface. This is the same for anodizing and etching heatsink, which will reduce the thermal resistance and make the overall heatsink better.
3. Do grwoth plant light need heat sinks?
LED has a lot of extra heat. This heat comes from the low efficiency of the semiconductor which will produces light. The radiation efficiency of LED (total optical output power divided by total electrical input power) is usually between 5% and 40%, which means that 60-95% of the input power is used as heat loss.
With the increase of LED junction temperature, the forward voltage and lumen output will decrease. This not only reduces the brightness and efficiency of LED, but also reduces the connection temperature and affects the overall life of LED.
If the heat of LED is not discharged in time, the temperature will be too high, which will affect the wavelength of the plant growth led light. The change of the wavelength of the plant growth led light will affect the growth of the plant, which will lead to the plant not growing as expected.
4. Does the heatsink of plant grwoth lamp need ventilation?
Yes, the growth light need ventilation. Because the LED growth light produce a lot of heat. If this heat does not venture appropriately, it will damage to the light. In addition, it can create an unsafe growth environment for your plants.
There are several different ways to let LED grow light ventilation. One choice is to use a fan. You can use an independent fan or a fan built in the growth light. Another option is a ventilation system designed for LED growth lights. No matter which method you choose, you must ensure that the LED growth light is well ventilated. This will help to ensure that your light continues for a long time and ensure that your plants remain healthy.
5. Is the color of heat sink important?
In order to understand the role of the color of the heat sink radiat in the overall function of the thermal requirements of the components, it should be mentioned that the conductivity and dispersion of the heat sink and the whole heat sink are mainly affected by the type of materials used, the shape of the heat sink, the overall surface area level and various other factors.
In addition to these features, the actual color of the equipment is usually considered to be the key to determine the effectiveness of the heatsink. In fact, one of the secondary aspects of designing the cooling system is not only the shape, size and substance of the equipment, but also the color of the heatsinks actually used.
Some people said that because the heat emission of the heat sink is realized by convection rather than radiation, the color of the heat sink is not important. Others think color is important. The latter group believes that black is the best choice because it absorbs and emits heat better than any other color. Compared with other colors, the effect of black coated fins is much better than other colors. This is because black not only shows the best heat absorption, but also shows the highest difference between the heat sink temperature and the ambient air temperature, and also shows the highest heat dissipation rate.
However, black is not the only heat sink color selected by manufacturers in today's industry. Purple is another very popular choice. The color of this kind of heat sink is black in nature, and it should have a similar effect to black. At the same time, it will also be beautiful in the household appliances where the heat sink is actually visible. Therefore, blue is also used in some designs that require this color to make the whole assembly visually satisfactory. Many companies selling heat sinks provide a series of colors, which seems more for charm than practicality, so consumers can choose the appearance of his or her components.
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