Dimmable LUMATEK Ballast (250W or 400W) - Page 6

RokleM · 05/19/2010, 06:14 AM

The lower wattage one (150/175/250/250HQI). On which one to buy, I'd just try to take into consideration your future plans. If you have any thought in your mind you want 400's in the future, get the higher wattage one. If you might want to run 150/175, I'd probably get the lower wattage one.

ksc · 05/19/2010, 06:38 AM

Interesting. I tested both the Lumatek 250/400 and the Galaxy 250/400 with an Apogee par meter and got no "boost'" when switching settings on the 250 setting. On the 400 setting I got about a 5% increase in par when changing settings. I did use a 10 month old 250 radium that had been run on a m80 ballast, whereas the 400 Radium was brand new. I'll check again when I get new bulbs. I will say that the 400 Radium put out about twice the par as the 250....

RokleM · 05/19/2010, 06:42 AM

Very interesting. I wonder if there is an issue with the higher wattage ballasts (250/250HQI/400/400HQI)? When you test, see if you can watch the wattage as well. Interested to see the results.

05/19/2010, 06:14 AM	#126
RokleM Registered Member Join Date: Apr 2005 Location: Greenville, SC Posts: 9,687	The lower wattage one (150/175/250/250HQI). On which one to buy, I'd just try to take into consideration your future plans. If you have any thought in your mind you want 400's in the future, get the higher wattage one. If you might want to run 150/175, I'd probably get the lower wattage one. __________________ -Eric-

05/19/2010, 06:42 AM	#128
RokleM Registered Member Join Date: Apr 2005 Location: Greenville, SC Posts: 9,687	Very interesting. I wonder if there is an issue with the higher wattage ballasts (250/250HQI/400/400HQI)? When you test, see if you can watch the wattage as well. Interested to see the results. __________________ -Eric-

05/19/2010, 06:38 AM	#127
ksc Registered Member Join Date: Jul 2008 Posts: 415	Interesting. I tested both the Lumatek 250/400 and the Galaxy 250/400 with an Apogee par meter and got no "boost'" when switching settings on the 250 setting. On the 400 setting I got about a 5% increase in par when changing settings. I did use a 10 month old 250 radium that had been run on a m80 ballast, whereas the 400 Radium was brand new. I'll check again when I get new bulbs. I will say that the 400 Radium put out about twice the par as the 250....