I bought two sets of these bulbs (8 bulbs total) at the end of June and now half of them died at the end of October. Non-functioning units either do not light up at all or only light up very dimly when switched on. One bulb in the chandelier died a week after installation and the rest died a bit later (I thought today why it seemed so dark in the guest room, but it turned out that when it was turned on it was 2 out of 3 bulbs the unit gives only a faint glow off). And of course it's too late to get a refund now. I should have acted when the first one came out, but I missed it. These bulbs are very bright when they're new, but if they don't last long, what's the point? one might expect from this technology, but it's pretty pathetic. Not recommended.
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