Megaman Compact energy saving bulb E27 30W = 112W Compact Daylight White, MM30305 (household goods)
I put 6 pieces of ESL in my office for over 3 years as the main light source, and am very pleased with this decision. Currently, the ESL have been with me for more than 7000 hours (3 years x 300 days x 8 hours) in use (ie 70% of the predicted service