QUOTE(qwertyd @ Sep 22 2006, 06:00 PM) [snapback]692841[/snapback]
1 more quick question do you know if halide and sodium combo bulbs are any gud???
and what about these grolux dualspectrum lamps???
Metal Halides are the best bulbs for vegging plants.
High Pressure Sodium are the best bulbs for flowering plants.
The HPS 'enhanced blue' grolux bulbs are probably your best bet for using one light from start to finish.
Sodium wins over Halide for flowering because yields are much higher because of the amount of red light present which simulates 'Autumn' when the sun is lower in the sky and the plants flower.