What are the functions of Snap Type Waterproof Vent Valve in outdoor lighting fixtures?

Because LED outdoor lighting fixtures are used outdoors, they are directly exposed to various natural weather conditions outdoors. Therefore, if outdoor lighting fixtures are to be used for a long time, they must be waterproof and sealed. Most of the current fixtures will pass waterproof sealing rings. , waterproof sealant (organic silica gel, PUR hot melt adhesive), etc. for complete sealing treatment. Usually the electronic components inside the lighting fixture will generate heat. If the heat is too high and exposed to the sun, the internal gas will expand and it will Produce a certain degree of deformation to the shell; sometimes sudden rainfall causes the lamp shell to cool down rapidly, which will cause the internal air pressure to be too low, and air may be sucked in from the outside, and the moisture in the air will condense into water inside, causing Affects the normal operation of internal components.

Therefore, it is very important to ensure the internal and external pressure balance of outdoor lighting fixtures. Generally, ventilation holes are provided at certain positions of the casing, and the Snap Type Waterproof Vent Valve is used to protect the ventilation holes to ensure that no water enters through the ventilation holes. Inside the lamp, the Snap Type Waterproof Vent Valve, which is installed in a threaded or snap-on manner, is more reliable than the waterproof and breathable membrane attached with waterproof adhesive tape, and will not fall off due to loss of stickiness like waterproof adhesive tape. Snap Type Waterproof Vent Valve has excellent waterproof and breathable properties, which can balance the internal and external pressure differences caused by changes in the external environment, thereby maintaining the sealing performance and ensuring the reliability of lighting fixtures.