An LED lamp is a light-emitting diode (LED) product which is assembled into a lamp (or light bulb) for use in lighting fixtures According to the claims from various manufacturers LED lighting has a life expectancy of 20,000 to 50,000 hours. At 8 hours per day this would be approximately 17 years. This is roughly 30 times longer than incandescent bulbs and 5 times longer than compact fluorescents. Taken from: http://www.ledbenchmark.com/faq/life-expectancy.html. I'm not sure about changing the LED's in the lamp but you might be able to.