Once I bought this LED-light, I had to replace the short cable with one that has a wall plug attached. The IP66 is a joke when you look inside the lamp. One wire was squeezed between the metal case and the glass where the silicon rubber should be. Additional the Earth ground wire was floating inside the case. I screwed it under the reflector.
While using the lamp near the PCs Power line, my D-LAN adaptor received the data weakly. The noise comes from the tiny switched power supply for the LED.To prevent further distortion a filter was installed and now everything works fine. Actual the lamp is for indoor pre-growing of a pepper plant.
This is the first fruit, tastes like a sweet pepper should!