The lights go broke fast

Since 2008, I have at least 10 of those things brought by intermittent use of an average 3 lamps in the room.
They are mechanically extremely unstable, but also prone to error in normal use.
But the heat is low and produces black light is good compared to most alternatives.

I will, however, for obvious reasons in Zukuft try to blacklight LEDs to upgrade. Unfortunately, the offer for E27 lamps is here but still very low.

Incidentally, the last the Omnilux 15W instead of 25W Omnilux me was to talk delivered, I have the seller written, but he has never returned or ignored me. Because of the small difference in price I have left further steps. But for the lamp can not help and it determines an oversight, so I prefer not to in the standings.