what spectrum MH lamp ?

[charlesweedmore]

what spectrum MH lamps must be used for vegging ?
there are too many MH lamps in market.
eg,sunmaster warm deluxe neutral=4000k,cool deluxe = 7200K
Sunmaster HPS MH Conversion = 6000K

i am confused.which one is true ?
In addition, can all MH lamps be used with all 600w hps ballast ?
and can i use 600w MH lamp in 125mmX490mm cooltube ?
(MH lamps are bellier than HPS lamps )

thanks

 

[Gilpro]

Hey Charles,

I love Cool Deluxe for vegging, you will need a conversion bulb to fit that hps ballast, there is a slimline design MH bulb that will fit the cooltube, the older model MH bulbs are too bulky.

 

[charlesweedmore]

thanks mate
conversion MH is 6000K.
cooldeluxe is 7200K,but needs seperate balast
6000K is ok ?

 

[Gilpro]

Work with what you have, if you have a hps ballast go with the conversion bulb, that will allow you more of a blue spectrum while vegging, shorter bushier growth, tighter internodes, less stretching.

 

[BombBP]

I like my MHs in the 5500k-6500k range:).

 

[highroller]

The Hortilux Blue bulb rocks for vegging IMO.

 

[charlesweedmore]

thanks guys