I have 10 Cindy's and 10 Apollo 13 in veg about 6 inches tall.The flower room stays cooler than where I veg them especially this time of year.I can veg them in metal halide or 1000W hortilux with better conditions.Ive never vegged under HPS.I can get a conversion lamp for 25 bucks on amazon anyone ever heard of elfin lamps?Sunmasters are like 100 bucks.Or would you just veg them out with the horties?These are bushy little plants well ready for 1K.Thanks folks