I was initially very happy with these lamps when they arrived mid April 2020. They have proven to be excellent replacements for our traditional incandescent street lamps. But after a few months, the first of them dropped out. Now less than 6 months after installation we have 3 dead. I tried contacting the original seller or manufacturer (Moonflor?) as they were advertised with a one year warranty. When I was having trouble contacting them, I contacted Amazon customer service and they gave me a phone number to call. But it turned out that number was for FLOR, a flooring company. So it seems I'm stuck with 20% of those bulbs that are defective and who knows how many are dead before the warranty expires. I'll look elsewhere for a suitable replacement.