Changing to 600's

[ConvexConepiece]

I think 1x1000w on a mover would be better than 2x600 watters.

 

 

So remind me why we're stuffin about with the dodgy 600 bulbs again? Price those bulbs mighta bought the light mover

 

 

[Philfy8]

So remind me why we're stuffin about with the dodgy 600 bulbs again? Price those bulbs mighta bought the light mover

 

Already had the 600's, they were a freebie, never used.

[Philfy8]

It's been 24 hrs since the 600's where plugged into the 1000w ballasts. The room ran 5 degrees cooler all night, the ballasts put out hardly any heat (cooler than normal) and I used 14kw's less power. I thought the power might drop 8kw's but 14 is huge. I am wondering if the larger ballast runs more efficiently?

[ConvexConepiece]

Well fair enough,

 

and great that you've done an elec comparison.

 

Still not convinced it's safe though

 

Goodluck

[Philfy8]

Safety worries me to, so I ordered a light mover and will go to 1x1000w. From what I understand that would be better than 2x600s.

[pisspotgrower]

i actually thought if ya looked at watts per lumen ratio the 600s came up ahead of the 1000s but i might be wrong.

[Philfy8]

i actually thought if ya looked at watts per lumen ratio the 600s came up ahead of the 1000s but i might be wrong.

That's what most people believe, when you have 2 600w 90,000 lumen lamps it might be 1200w but it's not 180,000 lumens. It's 90,000 from 2 different angles. So the 1000w 140,000 still has the advantage IMHO.

[Grasshopper420]

I'd keep an eye on the 600w lamps because you do have an increased risk of lamp failure when you run them from a 1000w ballast. I've personally had them pulse and blow the bulbs. Not that is will happen, but it may. I now run Galaxy dimmable ballasts so I can switch to 1000w's during flowering weeks 3-6 (or anytime for that matter). It helps them bulk up, while running the 1000w's only half the time during flower. I learned using 430w lamps and then switched to 1000w. Now I run as many 600w bulbs as I can over a SCROG screen of fencing and can average 300-350g per 600w hood setup. The Ocho, XXXL hood has been my knight in shining armor ;-)

 

Since I run longer, more narrow rooms with two hoods side by side and spaced apart, I like 600w lamps for their coverage and limited use of power (compared to 1000w lamps).

 

One thing to keep in mind is that if you want to keep your number of plants down, it is easier to grow BIG under 1000w lamps. Meaning, if you want to turn them into trees it will not happen under 600w lamps like it will under 1000w lamps.

 

Be aware of the intricacies of having a mover if your hood is air-cooled, the ducting get twisted and creates a never ending headache if not properly dialed in! Especially if there is more than one light connected to the exhaust...

[smokinjoe]

Safety worries me to, so I ordered a light mover and will go to 1x1000w. From what I understand that would be better than 2x600s.

 

Light movers do produce impressive results. They're cool to watch also. An alternative to ducting is to grab a sealed hood with an axial fan and have it blow hot air to the roof where you can extract with a well over rated fan.

 

As suggested, ducting and light movers a complete pain in the arse.

[Philfy8]

Light movers do produce impressive results. They're cool to watch also. An alternative to ducting is to grab a sealed hood with an axial fan and have it blow hot air to the roof where you can extract with a well over rated fan.

 

As suggested, ducting and light movers a complete pain in the arse.

The light mover has been running for 2 weeks with no problems. The ducting hangs vertically from the ceiling, the light rail is mounted 600mm below ceiling allowing for good movement of ducting. The light only moves about 1m. But will keep a close eye on it.

Edited May 1, 2011 by Philfy8