The energy efficiency class of this bulb is G. The brightness in this bulb amounts to 600 lumen.
From Amazon
Osram Dulux S 9 W 830 Warm White G23 2P
LED Bulbs
Osram Dulux 9W PL-S 2PIN Warm White - 025742
Big on Electricals
Osram Dulux 9W PL-S 2PIN Warm White - 025742