I bought 20 LED bulbs, in September 2014, to equip all six fixtures at home (living / dining / kitchen / entry). At first, somewhat satisfied despite a slightly less important than its halogen lighting equivalent. It is enough to illuminate correctly ... On a chandelier, I also noticed that the lights kept low light, once the open switch. (But due to my electrical installation and no bulbs) Today, 3/31/15, this is the record I made: On my 20 bulbs (installed gradually to replace my old halogen bulbs leroy merlin (which were held not much time either), 2 LED bulbs have burned out completely (see picture, it is far from 30000h announced, it is closer to 1000h) 4 LED bulbs burned partially 1/4 of the bulb industry ... but the 3/4 still lights ... for the moment ... The other 14 are currently in good condition ... but they gradually been installed since September to today ... So I'm afraid they have the same fate as the bulbs installed in September ...
Avoid main reason for this - Their "low" cost (compared to competitors) is unfortunately not investment ... I will pass on higher-end bulbs next time, even take longer to change ...