Built, ballast and starter bypassed brightness TOP in cool white have, get 5 lamps in total, after 2 days a tube with bang / short circuit and breaker passed out, then I had to replace even light switches in the basement, to read no longer switch. I hope this is unique and comes with the other not so. Annoying the return, cardboard over 1.2 m and no free shipping label from Amazon bzw- MarketPlace, but Porto is paying itself. Because of the length not to verschlcken under 10.90. DHL etc even more expensive. That's why only 3 stars.