I am very disappointed with the lifespan of this UV lamp. Worked less than a month before blown. Competitor lamps that we used in our UV lamp lasted over a year and didn't cost much more. I currently have a backup of the same brand. I will update this review if it lasts as long as it should! Edit: The second bulb is still in use many months later. I hope the first one was just an accident. I will be buying my next replacement here and fingers crossed!