HPS lights

chick3n2011 said:

I've seen 315w equating to 500w of HPS (https://www.onestopgrowshop.co.uk/t/categories/grow-lights/complete-grow-light-kits/cdm-grow-light-kits) but not 600w. You got a source buddy?

I'll do some research, thanks!

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Just countless grow journals on here.

chick3n2011 said:

I've seen 315w equating to 500w of HPS (https://www.onestopgrowshop.co.uk/t/categories/grow-lights/complete-grow-light-kits/cdm-grow-light-kits) but not 600w. You got a source buddy?

I'll do some research, thanks!

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Look into bulb par readings:
https://growershouse.com/blog/cmh-315w-lamp-comparison-test-data-review

Some dudes thoughts:
https://www.maximumyield.com/your-guide-to-ceramic-metal-halide-grow-lights/2/1462

Thank you. I appreciate it. I never even knew they existed until today. Definitely seeing the advantages. More of an initial outlay, but it IS an investment.

Cyproz said:

There are a tooooon of HPS light brands. I see alot have mixed reviews on amazon.
Im looking for a 600 watt or 1000 watt digital HPS with a hood that has air cooling holes.

So far i would only trust my good old buddies at HTG supply or on amazon i might try VIVOSUN.

anyone ever had the digtial HPS from VIVOsun

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I'm using yield lab and it's probably the cheapest HPS gear you can get your hands on and I'm quite happy with it

chick3n2011 said:

Thank you. I appreciate it. I never even knew they existed until today. Definitely seeing the advantages. More of an initial outlay, but it IS an investment.

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It is but at the same time the bulbs typically last 3-4 the time. So you spend about the same over 4 years. You also save a lot in power costs, looking for the report i read but i think migro did a test and power consumption on cmh vs its hps equivalent so 315W vs 500 or 600W hps you end up using around 60% more power through hps and in the long run it was a cost difference of a few hundread a year British pounds

I've just read both of the articles you sent me.
Feeling much better informed now.

I love this forum.

what brands are reputable for CMH? i noticed similar prices to 1000watt hps on amazon but none of the cmh i see have a brand lol maybe its just amazons selection

For optimal grows, bulbs should be changed frequently not used for their stated life expectancy .

the only thing i dont like from those sites is that i cant work in my garden while the CMH light is on. I like doing that and dont wanna work in the dark with a headlamp personally.

You cant go wrong with Philips

lilroach said:

I run both magnetics and digital. I've been running one of the mag ballast for over seven years and it keeps on chuggin'. It may be because I have more digital ballast than mags, but I've had more failures with the digital's.

The only beef I have with magnetic ballast is they don't mount on a wall, at least very well, like the digitals do......and are relatively fuckin' heavy.

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mag ballasts can also cause radio and cable tv interference, which could lead to inconvenient visits from cable tv guys looking for the interference they know is coming from this very specific area...