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info site on lighting, please

Need a web info source for up to date bulb and ballast choices please. 
I built my own and spent more time hopping around that it was worth. That was 
a 4 T-8 with one electronic ballast. 36 inch bulbs. It keeps cooking 
My new hood project is a 4 bulb T-12 48 Inch. Maybe two ballasts on timers 
for overlapping cycles on/off. 75 gallon tank.