actinics take away light intensity?

i have 2 65watt and 2 96watt power compacts over my 75g. Would it be a bad idea to run 50/50 on all 4? Having mostly softies and maybe some easy SPS.
 
Blue is Dimmer

Blue is Dimmer

From Dr. Joshi's spectral analyses of MH lighting, the bluer lamps produce less light. I'm not sure if the same is true of fluorescent lighting.
 
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