I never saw whether this bulb worked. The first one arrived shattered. Cross-ship return. The second one arrived shattered. Cross-ship return. The third one didn't have any glass obviously broken, but the packaging was the same and the bulb never flickered or lit. Returned.At the end of the day, Petco actually had better pricing for an equivalent bulb and shipped in MUCH BETTER packaging. So...try the bulb, but be ready to return it if you hear glass rattling when it arrives.