Just curious who still uses them - please post it up since I know some of you are lurking. I am bringing 10K back to my reefs.
Hamilton 250W 10K on M80 and their 145 to 149 PPFD. This is a nice white bulb for those who have not seen it that pops coral pretty well. I will also be using a pair of VHO Super Actinics for the rest of the pop.
For comparison, a 250W Radium 20K is 85 PPFD on M80 (the correct ballast). A 400W Radium 20K is 90 PPFD on the M58 ballast (the correct one). These would be equivalent to just over 4 Radion 30s and more than 10 Kessil 350s in terms of radiated watts.
Hamilton 250W 10K on M80 and their 145 to 149 PPFD. This is a nice white bulb for those who have not seen it that pops coral pretty well. I will also be using a pair of VHO Super Actinics for the rest of the pop.
For comparison, a 250W Radium 20K is 85 PPFD on M80 (the correct ballast). A 400W Radium 20K is 90 PPFD on the M58 ballast (the correct one). These would be equivalent to just over 4 Radion 30s and more than 10 Kessil 350s in terms of radiated watts.