SYLVANIA 15W, 18" MOL, T8, Preheat Fluorescent Linear Tube Lamp, Premium Cool White Phosphor, 4100K, 70 CRI, 1 Count (Pack of 1), Frosted

This lamp bulb fit my very old desk lamp without a hitch and provides me with much more light than the old one that was on it's last legs. It was very easy to remove the old bulb and replace with this new one and what an EXCELLENT value this one is. Definitely recommended and with a 5 star rating.

I use this in a pantry fixture that doesn't get that much use, but it works fine and is a little brighter than the one I removed. I was going to convert to an LED, but the low price on this caused me to reconsider.

I have trouble seeing in low light, so my landlord installed under cabinet lights for me in my kitchen so I could prepare food and wash dishes more easily. The lights he put in were great, but still kind of dim, so depending on where I was or what angle I was using, it was still sometimes difficult and I would have to turn on all my kitchen lights. I bought this bulb when my over sink bulb blew. I went with this one, because Sylvania is a popular brand that I have heard of and I was hoping that would translate to a brighter bulb. I’ve never replaced a fluorescent bar light before. so I was wary of buying anything different than the F15T8 one that was in there before as I wasn’t able to find anything definitive online to tell the difference between wattage and length when determining what the “F” number indicated. I was very happy to find that this light is bright enough that I no longer need to turn on every light in my kitchen just to wash dishes or chop some veggies. I definitely recommend this bulb.

When I bought these under counter lights they came with dimmer yellow bulbs when they went out I replaced them with these they are great. I think one went out after about a year and a half of continual use to two years and then replaced it. I will keep purchasing when they go out. Fluorescent bulbs seem to go out more the more you use them years ago they used to last for 10 years don't know what's changed. Some people I did want to Note that they replace the bulb and say it doesn't work I believe maybe their ballast went bad They do sell ballasts for these cheap on Amazon two of them for probably the price of one bulb. But daylight bright which I think these are are great nice bright white.

I have a problematic laundry fixture that is horribly located and needs these bulbs. I dread changing the bulbs out. These worked fine. Not sure how long they will last but served my needs

I still have fixtures that use these fluorescent tubes. I thought about upgrading to LED, but that's quite the expense!My search for a reasonably priced replacement fluorescent tubes, found these.The pros:+ Pretty good customer product reviews.+ Surprisingly low price of $2.29 each, when I bought a bunch, with free Amazon shipping!+ These "Premium" cool white, 4100 kelvin tubes enhance colors, not as cold as the regular cool white tubes.+ These tubes are pretty bright at 900 lumen.+ These "premium" tubes are CRI 70, which render colors better, compared to standard... utility rated tubes!The cons:- One of the tubes I installed in January is "dead" & it's February! Normally I get over a year of use before tubes fail!Closing remarks:▪ I really like these Sylvania Premium tubes, but lasting less than 2 months is unacceptable!▪ These are used in my kitchen as under cabinet lighting, so they do get power cycled a lot, so I don't expect more than a year of use.▪ All our fluorescent fixtures have electronic ballasts, so it's not the tube filaments burning out.▪ The tube that died showed no sign of blackness on the ends, which I normally see on failed tubes.Updates:► 03-28-23 - no additional bulbs have failed, so I upped my product rating from 1 to 2 rating stars.► 09-07-23 - I just had to replace a bulb after less than 9 months of service! The bulb still lights, but the brightness... light output is much less than the other installed bulbs? I decided to drop my product rating back down to 1 of 5 rating stars!► 11-18-23 - Another tube is dead after 11 months of use!► 04-09-24 - Yes, another failure & the price of these tubes used to cost $2.29, now over $15 each! Perhaps time to reconsider upgrading to LED light tubes?

If you have an old fluorescent light fixture that uses a starter, and you're too lazy to rip the whole thing out and replace it (like me), then this is the bulb you need. Starts right up and has a nice bright light.

The size was slightly short and did not work for me.