what MH bulb K rating do you use?

[the gnome]

Ive been using a 4000k MH bulb and when the plants go from T5s to the Mh the new growth is yellow and not a healthy green I get with T5 6000k HO bulbs.

anyone using mh 4000k bulbs seeing this?
I think I need to try out a 6000k or 7200k bulb and see if it helps?
I'm looking at a sunmaster 6000K and a solarmax 7200k.
now the info says this for both bulbs:

T25 bulb with nickel plated mogul base
Operates on M47 1000W Metal Halide ballast
Horizontal ± 45º position

I'm running a digi ballast and this says it operates on a M47
is there a prob using this bulb??

 

[Briar Patch]

I've been using the Solarmax 7200 for about 6 months now and really like it. Don't know anything about digital ballasts though.

 

[Andyo]

m47 ballast

m47 ballast

I used use m47 ballasts with sylvania lamps .
usualy with 415 v supply.
If on 220/240 v u need an auto transformer xfb 240/415 or 110/415 depending on your voltage.
I dont know if digitals run these 415 v lamps.

 

[the gnome]

my digi ballast runs 110v and 220v.
are you in the USA andyo?, 415v isn't common in the states

 

[the gnome]

I've been using the Solarmax 7200 for about 6 months now and really like it. Don't know anything about digital ballasts though.

are you using the 1000wbulb, what kind of ballast?
are the new growth tips nice and green using the 7200k solarmax,
this is the one I'm leaning towards

anyone using solarmax or sunmasters 1000w MH bulbs in digi ballasts?

 

[Andyo]

no was talking about in the uk

no was talking about in the uk

ah i should have made it clearer i used 3 phase 2 live 220 phases m47 is designed to run on 415v but in your case the ballast would have a 220/110 auto transformer in the box .ive used them in a house on 240v with xfb 240/415.A

 

[growshopfrank]

are you using the 1000wbulb, what kind of ballast?
are the new growth tips nice and green using the 7200k solarmax,
this is the one I'm leaning towards

anyone using solarmax or sunmasters 1000w MH bulbs in digi ballasts?

If you want reliable ignition using a 1k digi I would recommend the hps to mh conversion lamp LM 1000

 

[CFL_Grow]

I veg with a 4000k MH bulb (cheapo from lowe's) and the new growth comes out lighter yellow no matter what i did. It would darken out after growing but light green to start.

 

[the gnome]

thats exactly what happens to mine CFL-Grow
it takes 3-4wks for the plants new growth to start to darken, sometime the yellow borders on white its so pale.
my 1st grow I thought It was a def. of some type, on my 2nd now and i ha a
I have a T5 8bulb w/6500K bulbs right next to the 1000w Mh w/4000K bulb and the difference is nite and day, this is why I wan't the solarmax 7200k bulb.

growshopfrank, thanks for the link, I'll check the kelvin rating on those

 

[Andyo]

osram 7.2 k on s52 HPS ballast

osram 7.2 k on s52 HPS ballast

I suspect in fact i damn sure solarmax lamps are made in germany by osram they are identical to the osram HQI-t 1000w/D 7.2 k.
The osram HQI runs on my S52 hps ballast i change 1 of the 25 mfd caps for a 12 mfd.A

 

[187020]

here are two digilux 600 mh w lumatek 600 non dimmable ballasts. one bulb is blue the other is pink...what the fuck ?!?! if these bulbs are spectrum tuned then i'm not seeing it !!

peace homies

 

[RedRain]

Solarmax 7200K 1000W and 600w

 

[auto guerilla]

i had a 150w mh with 4000k bulb. used it for couple months but i would recomend the
6000k bulb. mine was going ok but not as fast growing as under 6400k t5's of the same wattage. i think the 4000k puts out too much unusable light to be worth it. it's only a bulb so just get new one of better and known spectrum. good luck