The bulb can be lit for about 2 000 hours before it needs replacing. As for the brightness, this light bulb clocks in at 630 lumen.
From Amazon
OSRAM Halogen-pin-base / HALOSTAR /GY6.35-socket / dimmable /12 Volt/ 35 Watt- 50 Watt Replacement / warmwhite - 2900K/ Pack of 2
Conrad Electronic
OSRAM HV halogen EEC: G (A - G) GY6.35 44 mm 12 V 35 W Pin base dimmable 1 Set