Hps vs cfl

**Bewbuds** · 01-09-18, 07:23 PM

Is there really that much difference in them say a 600watt hps or 2 300w cfl duel spectrum?

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**GEORGE** · 01-09-18, 07:26 PM

Originally Posted by Bewbuds

Is there really that much difference in them say a 600watt hps or 2 300w cfl duel spectrum?

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Yes, difference in Night and Day.

**M_C** · 01-09-18, 07:30 PM

The average 300w CFL will output approx 4,000 lumen. 2 of them are around 8,000 lumen

The average 600w HPS will output approx 90,000 lumen

... you do the math!

**Bewbuds** · 01-09-18, 07:36 PM

Woow alot then.. I have been looking online (ebay) and it's advitised as 300watt cfl 25000 lum so that's just bullsh*t then mate ? Thanks for the info. What about veg should I go with 6400k cfl or just use my 600w hps duel spectrum from the off ?

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BB · 01-09-18, 07:40 PM

Originally Posted by Bewbuds

Woow alot then.. I have been looking online (ebay) and it's advitised as 300watt cfl 25000 lum so that's just bullsh*t then mate ? Thanks for the info. What about veg should I go with 6400k cfl or just use my 600w hps duel spectrum from the off ?

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If you have dimmable ballast I’d look into getting a 400Metal halide bulb for veg then switch to hps for flower but you can use dual spec from the start.if you just have a 600w ballast then just remember to put your light high in the tent to start with

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**Bewbuds** · 01-09-18, 07:45 PM

Yeah I don't have a dimmable ballest mate. I am just using a 50w cfl atm. Seedlings have just popped out the soil 2 days ago. So I think I might switch on the 600watt hps soon then. I was just thinking about costs with the 18/6 cycle

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**M_C** · 01-09-18, 07:50 PM

Originally Posted by Bewbuds

I was just thinking about costs with the 18/6 cycle

2x 300w CFL have the same running cost as 1x 600w HPS

**Bewbuds** · 01-09-18, 07:52 PM

See I thought that with it been the same amount of watts. But again bullshit info on eBay stating 2p a hour to run. Guess it's time for the hps then mate. Thanks

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**GEORGE** · 01-09-18, 08:26 PM

A 300W CFL only has about 75Watts.

**Loki** · 02-09-18, 09:31 AM

I've always used my trusty 600w from start to finish, there is no comparison between HPS & CFL, HPS wins hands down every time. Saying that though, using a CFL for seedlings is ok, maybe the first week above ground then make the switch.