I received my shipment on Friday the 6th of Nov, 2009, put them together and they worked that evening. On Saturday the 7th, 2 worked, the rest just blinked, on the 8th, I was excited as they were working again so we figured that being overcast the night before was the problem, but 15 min later 2 worked, 2 stopped working and 6 blinked. I put them back in the boxes and sent them back the 9th. Frustrating to think you found the one product you really like and it is a dud.