A friend asked me to clarify before making a purchase.

1. (I know it's a dumb question, but it's better to find out now than later.) Is a switchable ballast truly switchable or does it still require a conversion bulb when changing out?

2. What's the concensus on the 600W Galaxy Ballast? Is it reliable and as quiet as they say?

3. Is there a rundown on nutrient selection? The GH 3-part Micro/Grow/Bloom seems relatively straightforward, but what about the other things like KoolBloom, Floralicious, etc... It gives a description on the GH site about what each does, but how does someone actually choose which ones they'll be using?

Are some more important than others? (I can see FloraKleen helping with flushing)
Ingsoc Reviewed by Ingsoc on . Switchable Ballast A friend asked me to clarify before making a purchase. 1. (I know it's a dumb question, but it's better to find out now than later.) Is a switchable ballast truly switchable or does it still require a conversion bulb when changing out? 2. What's the concensus on the 600W Galaxy Ballast? Is it reliable and as quiet as they say? 3. Is there a rundown on nutrient selection? The GH 3-part Micro/Grow/Bloom seems relatively straightforward, but what about the other things like KoolBloom, Rating: 5