hideous
04-25-2011, 03:43 AM
Hello All
I have been given some advise on lights for my grow but I have a few lighting questions.
1. with HID must the bulb and the ballast wattage match or can one be higher then the other?
2. What is the difference between a "switchable wattage" ballast and a "dimmable" ballast? (And why have I been told to avoid the dimmable?)
3. I will be using MH and HPS so I would want a ballast thats switchable between them. Some ballasts are switchable with a switch and some auto detect is this correct? And they can be Magnetic or digital? And if magnetic can it use CMH?
4. Whats a conversion bulb?
I have been given some advise on lights for my grow but I have a few lighting questions.
1. with HID must the bulb and the ballast wattage match or can one be higher then the other?
2. What is the difference between a "switchable wattage" ballast and a "dimmable" ballast? (And why have I been told to avoid the dimmable?)
3. I will be using MH and HPS so I would want a ballast thats switchable between them. Some ballasts are switchable with a switch and some auto detect is this correct? And they can be Magnetic or digital? And if magnetic can it use CMH?
4. Whats a conversion bulb?