MTEC bulbs disappointed me twice. I first order those V3 bulbs directly from their website. Both of the bulbs did not turn on after being installed. They even told me they will charge 20% restocking fee if I wanted to send those bulbs back
The second time I ordered similar bulbs (MTEC V3) from eBay. The listing clearly stated they are compatible with 2011 BWM 750Li. Guest what, only one bulb turns on. The other did not. Contacted them and they said these V3 bulbs unfortunately are not compatible with 2011 7 series
This experience has really made me loosing my interest in changing the halogen bulbs on my 750Li to LED. Just my thought on this guys :-)