12 Inch/ 12" Plug & Play T9 Circline LED Lamp - Warm White (2700K) Circular Bulb Directly Relamp 32 Watt Fluorescent Bulb FC12T9/WW, FCL32 (without rewiring or modification) - Ballast Required!

I had a fixture with two old dim fluorescent "circline" lights (approx. 12" diameter). I got these "warm" lights (2700K color temperature) to match the color temp of my other LED bulbs in the kitchen. They work REALLY WELL.- The four-pin socket on the LED bulb pivots for easy installation for various wiring configurations- The color is quite nice, and the "warm white" matches my other "warm" (more yellow/pink) lights- They seem to be quite a bit brighter than my fluorescent lights, but then again the fluorescent lights were really old and may have been dim with age- You do NOT need to re-wire your fluorescent fixture. These bulbs plug into a 4-pin output from a ballast. (This means, though, that the bulbs are using the ballast; so if the ballast goes out, these lights will go out.)- Check product description: some LED replacements require you to rewire/bypass the ballast. If you want to do that, get a different model. If you want fast/easy, get these.Great value for the money, great replacement for fluorescents.

These bulbs are great. I bought both the 12 inch and 8 inch bulbs for the kitchen light fixture, and love them so far!Pros:1. They're super bright!2. They're truly plug n' play - no rewriting needed.3. Unlike fluorescent bulbs, they don't hum, and don't flicker when turned on. They turn on instantly and flawlessly each time.4. They'll likely last much much longer than the fluorescent bulbs they replaced. (which died in 10 months)Things to think about: (not necessarily cons)1. They're a bit expensive. (but hey, you get what you pay for)2. The 6000k color temp may be a teeny tiny bit more harsh than the usual 4100k bulbs for some people.3. They're so bright, you can see two rings of light inside the fixture. (photos don't capture this unfortunately)All in all, if you have the money, and don't mind "daylight white" lighting, buy these. You'll love them. They'll last forever compared to fluorescent bulbs, turn on instantly, and are super bright.

I have fixtures using circline bulbs all over my house. So glad to have found these LED bulbs! The older fluorescent bulbs were burning out fairly quickly. So far, in the 2-3 years of using these led bulbs, I've not had to replace a single one after install. Longevity is excellent!!! These come in several color options, but I chose the warmer color of 2700K and absolutely love it. Plenty of bright, warm light in every room I use them in. This company makes a very high quality bulbs and they are simple 'plug-n-play' install. Easy peasy!

These are brighter than the standard bulbs they replace, which was much appreciated. It should make the ballasts last forever as they are drawing less current. The light does not go out the sides quite as evenly as a standard bulb, it is a little more directed downward. Not dramatic, but a slight difference. It wold be great if the semi-opaque cover was more that 50% of the tube so the light would go more evenly in all directions. Expensive but if you want more light from your circline fixture and want to stop replacing bulbs this is the way to go.Sunlight - Very good for seeing, but can be harsh.Cool white - In the middle, decent vision but not too harsh.Warm white - Relaxing light but not great for seeing detail.If you have a dual circline fixture (8 inch in the middle of a 12inch) you can use a "warmer" light on the outside (12 inch) and a "cooler" light in the middle and it is not as harsh but you still get good vision. I used a cool white 12 inch with a sunlight 8 inch and it worked well for our bathroom. For a living area I would suggest a 12 inch warm white with an 8 inch cool white. I would not mix the extremes (sunlight with a warm white) because the color is very different and it looks a little funky.

The product turns on instantly and requires no extra wiring. Fixed an issue with my old T9 bulb which required a lot of flicking off and on of the switch to fire up. The brightness of LEDs is a major improvement over the cool white t9 bulb it replaced. Sometimes I feel like I want to stare at the light as I am mesmerized of how nice it looks. It's like daylight at night time; it gives off that operating table/dentist type of brightness which is perfect for the kitchen where it resides. No prime shipping available when I purchased this but worth the extra days wait. Will definitely replace my 2 remaining T9 lights with this in the future.

Well, much as most other reviewers have already stated in their reviews, this is simply an EXCELLENT LED replacement lamp for use in older fluorescent lamp tube fixtures. In my case, I bought this to replace the circular fluorescent lamp in an overhead light fixture in my kitchen; that old fixture must be at least 30 years old. All that I can say, much as other reviewers have said, is that the room has never been brighter!These lamps are well-designed, well-crafted, and they work very well. And, this lamp is far brighter than any of the fluorescent lamps that were ever emplaced in that fixture, and is about 65% brighter than even the brightest fluorescent lamps that were ever in that fixture. BTW, this lamps has been in service for about 14 hours per day, for every day for well over a year now, and it is still working perfectly.

These bulbs are fantastic and the customer support provides by New York LED Luminaries is just as great!I purchased two of these to replace the florescent bulbs that were in our kitchen. One was burnt out so it was time. The LED replacements are plug and play. I ordered ours in 2700K because that is what our whole house is lit in. These are almost twice as bright and use almost half of the energy. Not only relieving our monthly energy bill by amount 4 or 5 cents each, but also placing less wear on the ballast which should prolong it's life a little bit too!