Wonderfully light the lamps was also warm, because the energy efficiency of LEDs is still on the level of fluorescent tubes or energy-saving lamps.
The lamp is defective since yesterday.
I could see a crack between the cooling fins yesterday.
The LED bulb was probably too warm, although it shone only in a socket without an umbrella in the closet. There they had to side about 20 cm room and upward about 30 cm square.
Warm air rises. Which seems no longer sufficient to cool when not in the middle of the room hangs like the Second, the (still) illuminates the kitchen.
I suspect that this may be too highly bred model is not designed for long burn time in a row and will probably remain in the future at Philips.