Chlorine, salt water and constant immersion are brutal on lighting fixtures. That is why most pool light failures start with water ingress, not with the LED chip. In this article we explain how resin filled (fully potted) construction solves the problem.
What is resin filling?
Resin filling means the whole internal cavity of the lamp is filled with epoxy or polyurethane resin. Once cured, there is no air space left inside the housing, so water cannot travel along cables or through screw threads.
Advantages over rubber-ring sealing
- No aging gasket — rubber rings harden and crack after 2-3 seasons, resin does not
- IP68 rating can be maintained for years, not just at the factory
- Better heat dissipation from the LED board to the housing
- Thinner fixture design, because no mechanical sealing depth is required
Where resin filled lights are used
Swimming pools (concrete, liner, fiberglass), spa pools, fountains, underwater spotlights and landscape water features. Our LH-S-01 ultra thin series is under 10 mm thick thanks to this technology.
Quality control at Lanhe
Every unit is produced under a strict QC system with waterproof testing before shipment, and the defective rate is kept below 0.5%. All models are CE, RoHS, LVD and EMC certified.
Looking for a reliable resin filled pool light supplier? Contact our team for specifications, samples and OEM options.
