The switching cycles amount to 20 000 times. The description is 50000 times. If you consider that for example just in motion the lamp daily 10-20, and again go out., The life is very limited. In this light the important heat sink for the internal "power supply" is missing, thus, a long service life are hardly guaranteed. The LEDs do not require direct cooling but the power supply (rectifier, capacitor, coil ...) transforms the high AC voltage to 5 volts DC. The LEDs radiate sideways down creates a dark spot with a bright rim !! The high quality aluminum casing, as described, I could not see. Probably so that the installation of the LED's mean ...? In addition, the lamp can radiate to me allegedly, but that's matter of habit. Schade had ordered 8, due to the great reviews.
