Really???
Most don't use 600 in bloom,,,most growers use 1k's ..
anybody using 600's is doing so due to small dimensioned grow parameters and heat concerns
or an energy consumption concern,and high electric bill...
well cabron. I TOTALLY agree with you on using 1k mh for veg. literally makes the best plants I have seen buy a long shot....t5ho are great for up to about 1.5feet but to really get max veg you need 600 or 1000 mh...
now I have to beg to differ on your ideas on 600 watt being inferieor to 1000..
if you do the math you can see that 600 watt are the most eficent... as most 600 watt hps can deliver 98,000 lumens and some of the new electronic ballast are even producing 118,000lumens with a new optimized bulb you can see thats fanastic lumens and plenty of penitration..
now compare that to the average 1000watt hps at 148,000 lumens , its easy to see that the 1000watt hps produces more...
the problem is that your using much more power. they draw in the range of 1275 wtts of energy to make that 1000watts output... plus the heat build up is alwasy an issue with 1000w....
no take into account a 600 watt using 705 watts energy total consumed power .
I have seen many optimized proffesional garndens that prefer to use 2 600 watts in place of 1 x 1000watt... when you comapre 2 x600 versus 1x1000watt the lumens output are undesputed...
2x 600wat =225,000lum...
where as the
1000 being only 145,000lumens...
2x 600wat power consumption = 1410w
1 x 10000watt power consumption = 1275w
so for a 135 watts more power used with 2 x 600 w your increasing your lumens output by a large factor . basically a 8% increase in power usage delivers a whopping 40% power output due to the major power efficiency of the 600watt systems...
the other advanatages are:
- less localized heat build up
- more spread out light source means better deliver of light for plants farther away
- overlapping of light paths which creates more grow foot print
- closer bulb to canopy placement which is a huge advantage due to penetration as light drops off half its lumens for ever foot traveled..
hope this helps you and others as it was somthing I learned many years ago..
The only disadvantage is that the set up cost is more as you need double the light equipment, 2x ballast bulb reflector etc.... but performance always cost