In my research 26-30watt lights are 3x more powerful in lumens per dollar than 85, and 105 watters.

But do the high powered ones do a better job?

Do they put off light for a wider distance? Or is 1200 lumens just 1200 lumens no matter how you add it up.
Thanks.

Does no one know?? Do the 85s penetrate better or are they all the same. (Bump)

I think out of all the various sizes and wattages the 42 watt bulbs are the most efficient at 66 lumens/watt, but they arent the best value

CFL's are omnidirectional, they emit light in all directions, so getting a reflector will help

26 watt CFL's are common and cheap, you can get a 4-pack for $10-$15 at any color temperature.

For example:
$6 power strip
$10 (4) direct plug-in socket adapters
$12 4-pack 26 watters
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$28 for 6400 lumens

$7 clamp light
$3 Y-adapter socket
$20 (2) 42 watters
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$30 for 5600 lumens

$7 clamp light
$15 68-watter
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$24 for 4200 lumens