which bulb is superior

[indicagrower]

Thank you for that info.

I did find the bulb specs and both are 21k, meaning they will not work well for vegitating plants. So don't be fooled into thinking you can use these bulbs in place of a metal halide lamp.

Not true....i use hps for veg. and flower...hps will do veg. and it will do it quite well

indicagrower Reviewed by indicagrower on 11-06-2007. which bulb is superior which of these bulbs are better Grolux 400w Dual Spectrum Sunmaster 400w Son T Plus Rating: 5