Measured actual electrical on my tank

[spreerider]

wow thats really bad efficiency on the lights, your only getting 61% efficiency, most MH ballasts are rated at 80%-97% efficient i would be concerned with this and proably retest the lights then try one at a time, seems like your ballast is not operating properly and could be headed for a burnout (definatly the extra heat would not be helping,
Also i would take my bulbs out and put them back in, check for corrosion on connections, and redo all electrical connections as they could be poor and forcing the ballast to pull more amps.