Satco S8320 4100K 13-Watt GX23-2 Base T4 Quad 2-Pin Tube for Magnetic Ballasts, Cool White

The only catch was the bulb gets very hot and I thought CFL bulbs were sort of cool. They did not make this bulb in LEd.

Flashed a few times when first starting

This worked perfectly for my NuTone bathroom fan - it blinks a couple times when you light it up, but that's normal for CFL bulbs. I was a bit concerned because it fluttered a bit after being on a while when I first turned it on. But I turned it off, turned it back on, and it's been fine ever since - just the usual initial blink, and then it burns solid.

Very very nice colors are bright very good quality I could not have ask for anything better my daughter loves it shipped on time and has repair kit if you need it in the future

Didn’t fit. Too many bulbs and many don’t fit. Need an advanced degree to figure it out.When ordering better know what you want and if your lamp is a few years old you might not be able to find the bulb you need. This is isn’t Amazons fault, it’s the bulb supplier. The product is overly complicated. I just want a replacement bulb, not a kidney transplant.

Non-std. item easy to find on Amazon. Delivered on July 4th under std. shipping! Of course won't know for a couple years how well it lasts. It is on only at night hours controlled by a solar activated switch. Ordered 2, just ordered two more. The bldg. has 24 lights - probably should have ordered a case.

Does the job. Fits well. Easy to install. Wish it was warm light. It’s a neutral white light. Bit cold, not warm.

typical cfl bulb flickering on startup with non standard base, what a piece of work, I would change out the Ceiling Fan Light fixture if I had the balls.

Hasta ahora funciona perfecto