UV UV-C Light Bulbs 9W G23 Base Replacement Bulb for Outdoor Pond Clarifier Lamp Compatible with UVE9 CF400 CF500 UVCP-9 JUP-01 303B 304B R18 R18D R2000 (4, G23 Base)

Installed 2 of these in the furnace plenum last week, both burned out, so I put the second set of two in today. Not very happy with reliability. Neither set worked, but my uv unit was found to be the problem so I don't know how to review.

I use two bulbs every year in my furnace UV light. They did the job nicely, but the price is up by 250% since I purchasd them two years ago.

The 1st set came & none of the lights worked. Fortunately, the seller was very responsive and sent replacements that did. Based upon other reviews, it seems like a gamble if you will get lights that work or not so buyer beware. These fit my pond clarifier and does the trick. 4 stars.

I have purchased these in the past and was changing every 3 months on a schedule. I started to watch them closer as they were always burned out. The 9000 hour super life claim is a load of crap. They have been burning out within 7 days. 9000 hours / 24 hour day = 375 days not 7 days or less. I put a fresh set in on 1/3/2025 - noted both burned out on 1/10/2025, replaced them on 1/10/2025, went on vacation and when returned home on 1/25/2025 - both burned out again. Replaced the set on 1/25/2025 and today 2/1 = both burned out. My furnace fan runs 24 / 7 circulating the air. This should keep the bulbs cool and last longer. I assume the manufacturer made a typographical error, not 9000 hours but 9000 minutes which is 6.25 days = that adds up. I will never buy any of these again once I started tracking them closer.

I just got them yesterday for my HVAC GreenUV unit g200 and they fit perfectly. They're very bright, I was surprised the quality was so good. I am unsure if they will last as long. My other ones that came with the unit had 1 still going after 2 years when the other 3 were burnt out. I doubt these will last nearly as long, but amazing price in comparison even if they only give me 4 months!

Reasonably priced bulb for my Bio-Shield UV HVAC mold zappers. Last about a year. I keep a few on hand for on-the-fly replacements.

Disappointed! One of the 2 bulbs burned out in 4 months. The seller never responded to my message asking for a replacement bulb. Update: The seller finally responded to my second message. The seller asked for a picture of the defective bulb. After receiving the picture the seller agreed to send me replacement bulbs. I increased my rating to 3 stars because of the seller’s satisfactory response. I am hoping the new bulbs last longer than the old ones as the light fixture is located in a difficult to reach location. I will update my review after testing the new bulbs.

I have use these for 3 years in an air conditioning unit in Florida. No mold.