You could think about whether you want a specialty bulb kit with face tanning, leg tanning, dual tone, or side and arm features. You should also consider the power (or wattage) of the bulbs. To make sure the bulb is compatible with your bed, you should consider physical characteristics of the bulbs such as the bulb type (bi-pin versus RDC), the length (F number), and the size (T number). There are several factors that need to be considered before replacing your tanning bulbs. It can be difficult to find the best bulbs for your tanning bed, and that’s why we’ve researched and we’re providing you with our top picks. Most bulbs begin to lose their optimal levels after approximately 600 to 900 hours of usage, depending on your specific bulbs. If you’re happy with the tanning bed you currently have and you’re just looking for new bulbs, then you can do that for a fraction of the cost of buying a new bed. If you’re one of these people, you’ll be glad to know that almost all tanning beds are compatible with one of our tanning bed bulb recommendations on this post. With all this confusing information, it’s difficult for many people to find a set of bulbs that they’re confident will work with their tanning bed. There’s a lot of confusing and contradictory information out there about tanning bed bulbs.