I have purchased many lED's some from E-bay, (Assorted results none 100% happy but Ill settle for 90) Some Amazon (So far So good, in fact I'm sitting under a 5 meter strip of Amazon Led's for less than 10 bucks as I type. I cut the roll into strips, tape 'em to the backing plate on my Thin Light Florcesent .. after removing all the Florcesent sockets and ballast, and they are N*I*C*E*!!!!!
Long lasting too
and some from other sources where I can check first, (Expensive).
My recommendation is make a small purchase and if it's a good supplier. TAKE NOTES and buy more.. If you want the Amazon page for the COOL WHITE lights I use (I like Cool not Warm) ask and I'll see if I can snag it from my order history.
I don't sell 'em. I just buy 'em.