A good quality LED bulb can last for 20 years. Almost all of the leading brands offer some type of warranty, some as much as a 10 year limited warranty. That's why you have to make sure the product you're investing in has a reasonable warranty period.
The price of the bulbs has gone down considerably in the last few years. You could buy these bulbs at under $10 a piece and find that they last a few days, and then just blow. If you're willing to replace all your light bulbs with the LED bulb light manufacturer, then prepare to pay a good amount for it.
China LED tube light import are more energy-efficient, because they utilize half the amount of power that regular light bulbs do. This improved energy efficiency allows home or business owners to cut down on their electricity bills when they install them throughout the house or office.
The extra cost of replacing all the light bulbs with the LED variety has to be weighed against the overall cut in the power bills in the long run. For 2013, the brands that got the best overall rating for LED light supplier sell their 60 watt for $50/piece, which is quite expensive when you multiply it with the number of bulbs in a house.