During the winter months, outdoor lighting fixtures such as sconces for outdoor lighting, black lantern exterior light, and black outdoor carriage lights often dim. This type of problem is partly normal and may also be caused by malfunction.
The performance of LED chips and power supply components can be affected in low temperature environments. -10 ℃ below, the LED chip electron mobility decreased, light efficiency decreased by 10-20%, the performance of the light just turn on the obvious dark, work 20-30 minutes after the return to normal, touching the light body warming up bright that is this kind of. Power supply electrolytic capacitors in low temperature capacity reduction, will make the wall lamp 3-5 seconds after the light is fully lit, it is recommended to buy solid-state capacitor drive, operating temperature of -40 ℃ lamps.
If beyond the normal range, need to troubleshooting. Driver power failure, lamp beads connected to the battery can light, multimeter drive output below the nominal voltage, replace the same type of driver (about 15-30 yuan) can be. Line moisture can also lead to dimming, water droplets in the lampshade, brightness changes with humidity is an obvious sign, power outage with a hairdryer low-temperature drying junction box can be dealt with in an emergency.
Outdoor wall lamps in winter, purchase is the key. Priority selection of operating temperature -30 ℃ ~ 60 ℃ models, metal shell better heat dissipation. Before the winter in the junction coated with 704 silicone rubber waterproof, snow in a timely manner in addition to the light area snow water seepage. Temporary response to the lamp body can be wrapped in insulation cotton (stay heat dissipation holes), or set the evening automatic light 1 hour preheating.
If the temperature rises after the wall lamp is still dim or flickering, it is recommended to contact the after-sales service.
