Suggestion for daylight high lumen bin-pin LED bulb
Most LED bulbs recommend against installing in a closed fixture like that because of concerns about heat building shorting the lamp life.

Another approach you could take is just to replace the entire fixture with an LED one. E.g. This LED ceiling fixture comes in 1400 and 1700 lumen varieties. You'll probably get much better light dispersion out of a fixture like that anyway because the individual diodes are all pointing in the right direction instead of a standard bulb where half of the light is shining towards the ceiling.