These are amazing light bulbs. These lamps do their job very well. Thanks to their extra long service life, they will work for many years. I should achieve a lifespan of around 15 years, but that depends on your average usage. Few things can be bought with such a lifetime. They may be a bit more expensive than traditional light bulbs, but the cost savings and longevity make them a sure winner. Although they are not dimmable, that is not a problem for me. In any case, I rarely use low light. These lamps produce clear, pure light and use far less energy to operate than my previous incandescent lamps. Every little thing contributes to environmental protection, so I'm glad that LED lamps are becoming more and more popular. These lamps come in superb packaging as they are individually wrapped in a plastic sleeve to protect them from damage. I highly recommend them.