Son Agro Ballast Q for Electrical Engineers

[Bryan]

From the info I have been able to pull from the net the Advance transformer SON AGRO ballast has a power factor of 0.8 which gives the draw of the ballast approx 5.2 amps at 120 volts(whew).

http://www.advancetransformer.com/ec...1627985351.pdf


The Universal/Magnetek SON AGRO ballast doesn't give a power factor but draws considerably less power. Specs state 4.30 amps at 120 volts.

http://ultballastspecs.tsqrd.com/hid/S430MLTAC4M.pdf

Any enginners out there that can comment on the difference between the two ballasts. Seems the Universal ballast would probably be more economical to run.