40-Watt 4 ft. ALTO Supreme Linear T12 Fluorescent Tube Light Bulb, Cool White (4100K) (10-Pack)

These bulbs are functional to say the least. they are bright as well easy to install. BUT don't be fooled by the 21.9 yr life expectancy of these bulbs based on 3 hr usage a day. I use these bulbs in my garage and it's on a auto on/auto off light switch. The most these bulbs see is about 1-2 hrs a day if that. With all that said, like other reviewers, these bulbs last 6-12 months at best. REALLY?!?! there's no way anyone is even coming close to a 22 yr life out of these bulbs. I understand that it's tested in a controlled environment but I can almost guarantee most people are getting under 5 years. And in my case 6-12 mo with minimal usage. Absolutely horrible. Who wants to change bulbs for the rest of their life......

The lights were installed In old light fixtures I had. They are being used to grow seedlings for the garden. The plants are very happy!

Nice and bright.

These light are super bright and perfect for a kitchen or any room where you want bright light. I installed them in my kitchen because that is where I drink my morning caffeine and they help me get going when it's still dark outside. I would not like the daylight ones in any room where you just want to hang out and relax because they are so bright.

My husband and I live in an apartment and our kitchen light started to flicker. We decided that we needed a replacement for this light. We bought a pack of two a few days ago. These lights are very easy to assemble and replace. They're also lightweight but very bright. There were several different packs of product in each individual packaging at the store. Since we just needed two, we bought the two pack one. I am very pleased with these lights because they were easy to find in the store. The light itself is white and it shines like a bright milky white color, which brightens my whole kitchen while I am cooking or baking. The price is quite decent too. Even a newbie can replace these lights, that's how easy it is to use them. The packaging was easy to open too. These lights are so much better than those yellow lights that you see in/around houses. I'd definitely recommend these to everyone.

It was cheap, but only last for about 4 to 6 months.

Good and bright lite

Bright and easy to install.

These bulbs are just what the wife and I need in the new light fixture we installed in our kitchen. Just the right amount and 'type' of light.

This product is long lasting and dependable especially in areas where light is a must. They are economical in price compared to length of service. I use this product in my home in the kitchen and workshop. Very pleased with performance and service of this product.