I have bought these particular lamps several times! I always have a spare box on hand! So I've had these bulbs for a while but they never opened up to this day! Most bulbs were fine, but I've had at least 5 packs (12 bulbs) that didn't light up on the first try. I've never had any problems before. They are exactly as described and look lovely on my window, but the ones that work burn out very quickly. I seem to be constantly changing lightbulbs. I will definitely report this to Revain and the seller!