This bulb has an estimated lifespan of about 7 500 hours. This particular model has a so-called 2G11 socket, so make doubly sure that it will fit.
From Amazon
Dulux L 36 Watt 830 4P 2G11 Osram
LED Bulbs
Osram Dulux 36W PL-L 2G11 Warm White - 010793
Big on Electricals
Osram Dulux 36W PL-L 2G11 Warm White - 010793