Opinions on Quality 600 watt hps Conversion bulbs for vegitation please ?

Was hoping to get some opinions from others that have experience in conversion bulbs for vegitation. I currently have a agrosun red for flowering but need to puchase a veg bulb. I was considering the sunmaster 600 cool deluxe ? Or the hortilux hp super ? Also can you give your experience with running a hps red for the whole grow. Last but not least does anyone run a low kelvin temp bulb for the last week in the 2000 range . Thanks for your input ! I was just hoping to make a decision based on results rather than taking a chance .Please list other bulbs you feel have excellent results .
 
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