Hey Princess,

Thanks for pointing out the potential probs with H202. Did'nt know it could be harmful. I guess its good that I have not used it so far.

I got the 4000K bulb together with my switchable ballast www.plantlightinghydroponics.com. (See link for specs)
http://www.plantlightinghydroponics....bulb-p-75.html
I think its just a normal MH bulb for street and building lighting with a lot of useless emittted light in the yellow green wavelength. So went and spent 60 bucks on a 6500K Agrosun bulb. My plants seem to like the new light.

Cheers