Caution life two days!

I ordered 10 pieces of these lamps because the price was unbeatable. As soon as I had the lights I installed this in 2 different lights (living room and bathroom). In both rooms the lamps were broken after 2 days. Operating time under 10 hours. Since I still had 8 I swapped it with the result that the new bulbs were broken again after 1-2 days. The supplier has sent me to complaint 4 new lamps. When I tried this thought this less than 5 hours and were broken on the same day. With brand manufacturers I had so far apart from the high price no problems there kept the lamps but 1.5 years.