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IP65 waterproof panel lights are loaded up to Korean clients.

IP65 waterproof panel light from Green Lux Limited are loaded up to truck and will be delivered to Korean clients.

What factors affect the waterproof performance of outdoor lamps

Ultraviolet rays

Ultraviolet rays have a destructive effect on the wire insulation layer, shell protective coating, plastic parts, potting glue, sealing rubber strips, and adhesives that are exposed outside the lamp. Aging cracks will appear after a long time, which will damage the waterproof ability of the lamp.

High and low temperature difference

Outdoor summer, the surface temperature of the luminaire can rise to 50~60℃ during the day and drop to 10~20℃ at night, and the temperature can drop to below zero in winter on icy and snowy days, and the temperature difference will vary greatly throughout the year. In summer, outdoor lamps will accelerate the aging and deformation of materials under high temperature environment. When the temperature drops below zero in winter, the plastic parts become brittle and are easy to crack under the pressure of ice and snow.

Thermal expansion and contraction

The change of temperature causes the thermal expansion and contraction of the lamp. The linear expansion coefficients of different materials (such as glass and aluminum profiles) of the lamp housing are different, and there will be displacement at the junction of the two materials. With the increase of time, the process of thermal expansion and contraction is repeated continuously, which will seriously affect the air tightness of the lamp.

We often find that water droplets and condensation appear on the glass of the underground lamp in the square, which is the result of the respiration of the internal air when it expands and contracts.

Waterproof technology for exterior lamps:

At present, the waterproof technology of lamps and lanterns is mainly divided into two directions: structural waterproofing and material waterproofing. The so-called structural waterproofing means that after the various structural components of the product are combined, they already have the waterproof function. The waterproof material is the place where the potting glue is left to seal the electrical components during product design, and the glue material is used for waterproofing during assembly.

Material waterproof

Lamps with waterproof material design use filling potting glue to insulate and waterproof, and use sealant to bond and close the joints between structural parts to make electrical parts completely airtight and achieve the waterproof effect of outdoor lamps.

With the development of waterproof material technology, various types and brands of special potting adhesives for lamps and lanterns continue to appear, such as modified epoxy resin, modified polyurethane resin, and modified organic silica gel. Different chemical formulas have different physical and chemical performance indicators such as elasticity, molecular structure stability, adhesion, uV resistance, heat resistance, low temperature resistance, water repellency, insulation properties, etc. of the potting glue.

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