What is the role of waterproof vents in floodlights

Whether it is in life or work, LED lighting is used more and more frequently. Due to the harsh working environment such as outdoors, the lamps are required to work normally in high temperature, severe cold, rain, etc. Therefore, the structure of outdoor floodlights should reach IP67 dustproof and waterproof rating. In addition to the influence of environment and humidity, the flood light is not affected. Also affected by the temperature, the floodlight generates a higher temperature during use due to the conversion efficiency of electrical energy to light energy. When the temperature of the floodlight increases, the internal pressure will increase, forming a pressure difference with the atmosphere. If there is a certain gap in the floodlight, the gas in the cavity will leak out. When the temperature of the lamp drops, the internal pressure will decrease, and the outside air will Even water vapor will seep in. Even if the new floodlights have good air tightness, the aging in the long-term work leads to the infiltration of gas (water vapor), and the long-term alternation of positive and negative pressure differences will cause the gap between the structural parts to become larger, which will eventually lead to poor airtightness. produce a breathing effect.

A serious problem with the breathing effect is the infiltration of water vapour. Once the internal humidity of the floodlight increases, it will not only cause the phenomenon of water droplets on the lens to condense and affect the effect, but also cause the lens, light source and other devices to be corroded, accelerated aging, and even lead to electrical short-circuits and other safety problems. In addition, even if the air pressure difference is not enough to cause the breathing effect, the high pressure generated by the high temperature of the closed cavity will damage the light source and the lens. Therefore, it is extremely important to use waterproof vents in order to ensure the service life of the household floodlights and maintain the air pressure inside and outside the lamps.

The application of air vents solves the problem caused by the breathing effect. It can balance the pressure difference between the inside and outside of the floodlight. It has good air permeability and can be waterproof, breathable, and balanced. pressure, extending the life of the floodlight.