The lamp burned for a second, then broke away 18.60 EUR into thin air. I can not understand exactly why they went faulty, I had previously installed two lamps that held every 2 years. However, these were not Phillips. To me, it looks as if the glass is not processed correctly at the point where the two tubes are connected. Anyone's guess, but in the price category may not be a lamp defect as quickly. That must sort out the quality assurance.