• Home
  • Forums
  • Medical Cannabis Cultivation
  • Growroom Design & Setup
  • Considering HPS. Am I being crazy?

Considering HPS. Am I being crazy?

  • Thread starter Thread starter jacare
  • Start date Start date Oct 24, 2025
  • Tagged users Tagged users None

Considering HPS. Am I being crazy?

jacare Oct 24, 2025 51 Replies 4,221 Views
Page 3 of 3 · Replies 41–52 of 52
Prev
  • 1
  • 2
  • 3
First Prev 3 of 3
A

AlanJohnson

Posts
101
Reactions
195
Joined
Oct 10, 2025
Points
43
Oct 25, 2025
#41
KG1 said:
Cool tubes dont cool light radiation heat.

A 400w isn't exactly hot with extraction, not going to heat 200cfms of air a minute by hardly anything, imagine it did the physics would be crazy lol.

Im with the guy who found LEDs just as hot as HPS, what I found to despite people saying they were a lot cooler and same light output same heat almost.

Impressive warehouse grow some still prefer hps, was never as bad as others made out.
Click to expand...
Better bud from a MH/HPS, I'm sure in five years they will get there with the LEDs as every year there's more advancement, the big companies and cash croppers can afford the electric bill lol. In the UK at present electric is at stupid prices, I'm at 27.9p per KwH
 
Reactions: oldskol4ever
Quote Reply

jacare

Posts
87
Reactions
98
Joined
Mar 24, 2024
Points
18
Oct 25, 2025
#42
AlanJohnson said:
Better bud from a MH/HPS, I'm sure in five years they will get there with the LEDs as every year there's more advancement, the big companies and cash croppers can afford the electric bill lol. In the UK at present electric is at stupid prices, I'm at 27.9p per KwH
Click to expand...
I got AI to calculate and compare the running costs of hps running at 400w vs a mars hydro fc4000 on 12/12. The difference worked out to 25p more per day for hps
 
Quote Reply
A

AlanJohnson

Posts
101
Reactions
195
Joined
Oct 10, 2025
Points
43
Oct 25, 2025
#43
jacare said:
I got AI to calculate and compare the running costs of hps running at 400w vs a mars hydro fc4000 on 12/12. The difference worked out to 25p more per day for hps
Click to expand...
I've just added up what I'm drawing, TV, cable TV, internet, house phone 2 fans, (1 for me 1 for the plant) my extractor and main light and I'm drawing 330w and done it at 18 hours so give or take +/- 50w and it's at the UK price cap.
 
Quote Reply

jacare

Posts
87
Reactions
98
Joined
Mar 24, 2024
Points
18
Oct 25, 2025
#44
AlanJohnson said:
I've just added up what I'm drawing, TV, cable TV, internet, house phone 2 fans, (1 for me 1 for the plant) my extractor and main light and I'm drawing 330w and done it at 18 hours so give or take +/- 50w and it's at the UK price cap.
View attachment 2552403
Click to expand...
Is your name a peep show reference?
 
Quote Reply
K

KG1

Posts
576
Reactions
697
Joined
Jun 8, 2025
Points
93
Oct 25, 2025
#45
AlanJohnson said:
Better bud from a MH/HPS, I'm sure in five years they will get there with the LEDs as every year there's more advancement, the big companies and cash croppers can afford the electric bill lol. In the UK at present electric is at stupid prices, I'm at 27.9p per KwH
Click to expand...
Yer pay similar, HPS or led it's not really much difference and never noticeable. My multiple kw heaters now that's noticeable as another winter rolls round. I know solar takes a hit but the wind turbines in the bay here must be raking it in the rate they have been turning so far hard to think why we pay so much for electricity.

I'm not sure LEDs can get much better, seemed to have reached an efficiency cap most offering Samsung evos on all top specs now very little difference.

To say HPS is better is pure hectic talk and we must slay all xenos alien and heretics on site by order of the god king.....

A conversion rate seems more friendly to discuss, feel I would want 300w top spec led to replace a 400w HPS, others might find different
 
Reactions: jacare
Quote Reply

jacare

Posts
87
Reactions
98
Joined
Mar 24, 2024
Points
18
Oct 25, 2025
#46
KG1 said:
Yer pay similar, HPS or led it's not really much difference and never noticeable. My multiple kw heaters now that's noticeable as another winter rolls round. I know solar takes a hit but the wind turbines in the bay here must be raking it in the rate they have been turning so far hard to think why we pay so much for electricity.

I'm not sure LEDs can get much better, seemed to have reached an efficiency cap most offering Samsung evos on all top specs now very little difference.

To say HPS is better is pure hectic talk and we must slay all xenos alien and heretics on site by order of the god king.....

A conversion rate seems more friendly to discuss, feel I would want 300w top spec led to replace a 400w HPS, others might find different
Click to expand...
This is what I'm talking about.
So I could get a 600w hps running at 400w for about 25p more expensive than led per day in electricity.
 
Quote Reply
K

KG1

Posts
576
Reactions
697
Joined
Jun 8, 2025
Points
93
Oct 25, 2025
#47
jacare said:
This is what I'm talking about.
So I could get a 600w hps running at 400w for about 25p more expensive than led per day in electricity.
Click to expand...
Sure around that, it's hardly much.

The saving difference to a small grower is basically nothing led to hps. The marketing makes out like your saving a ton of cash when in fact its loose change lol
 
Reactions: jacare
Quote Reply
A

AlanJohnson

Posts
101
Reactions
195
Joined
Oct 10, 2025
Points
43
Oct 25, 2025
#48
jacare said:
Is your name a peep show reference?
Click to expand...

jacare said:
Is your name a peep show reference?
Click to expand...
Yup, lol
 
Reactions: jacare
Quote Reply

jacare

Posts
87
Reactions
98
Joined
Mar 24, 2024
Points
18
Oct 25, 2025
#49
KG1 said:
Sure around that, it's hardly much.

The saving difference to a small grower is basically nothing led to hps. The marketing makes out like your saving a ton of cash when in fact its loose change
Click to expand...

KG1 said:
Sure around that, it's hardly much.

The saving difference to a small grower is basically nothing led to hps. The marketing makes out like your saving a ton of cash when in fact its loose change lol
Click to expand...
Which brings me back to the question which was for around £45 you can get a 600w digital hps kit. Thats bulb, reflector ballast. Everything all in. Now let's compare to a mars hydro fv4000. That thing is £250.
Running cost difference is 25p per day.
Performance wise how much better can it be when you look at the cost difference?
 
Quote Reply
A

AlanJohnson

Posts
101
Reactions
195
Joined
Oct 10, 2025
Points
43
Oct 25, 2025
#50
jacare said:
Which brings me back to the question which was for around £45 you can get a 600w digital hps kit. Thats bulb, reflector ballast. Everything all in. Now let's compare to a mars hydro fv4000. That thing is £250.
Running cost difference is 25p per day.
Performance wise how much better can it be when you look at the cost difference?
Click to expand...
I don't mind paying £2 a day with the standard charge tbh as it's nothing when it comes to a lot of other things in kitchen, a hoover, Heaters ect.

I've got a smart meter and I'm sure that will tell me the total for where I live
 
Quote Reply
A

AlanJohnson

Posts
101
Reactions
195
Joined
Oct 10, 2025
Points
43
Oct 25, 2025
#51
jacare said:
Which brings me back to the question which was for around £45 you can get a 600w digital hps kit. Thats bulb, reflector ballast. Everything all in. Now let's compare to a mars hydro fv4000. That thing is £250.
Running cost difference is 25p per day.
Performance wise how much better can it be when you look at the cost difference?
Click to expand...
I don't mind paying £2 a day with the standard charge tbh as it's nothing when it comes to a lot of other things in kitchen, a hoover, Heaters ect.

I've got a smart meter and I'm sure that will tell me the total for where a day, il check tomorrow, I saved up the buds from one of my girls last hair cut and got a few decent buds also, have them 4 days and know smoking it....it's very trippy as it's only on week 6, just now. So watching some ecumenical matter film with Russell Crowe in, it's gonna be nice weed
 
Reactions: jacare
Quote Reply
K

KG1

Posts
576
Reactions
697
Joined
Jun 8, 2025
Points
93
Oct 25, 2025
#52
Hps is throw away anyway, buy the hps enjoy the ride bin it when you got more cash.
 
Reactions: jacare
Quote Reply
Page 3 of 3 · Replies 41–52 of 52
Prev
  • 1
  • 2
  • 3
First Prev 3 of 3

Thread info

Replies 51
Views 4,221
Started Oct 24, 2025
Latest post Oct 25, 2025
Starter jacare
Forum Growroom Design & Setup

Latest posts

  • Tumble stumbles upon a Spider Farmer clip on fan.. Growing Blue Cheese, North Thunderfuck, Cali Blues, and Bruce Banner #2
    • Latest: Tumbleweed375
    • 4 minutes ago
    Grow Diaries
  • Let's See Your Frostiest Flowers
    • Latest: GNick55
    • 53 minutes ago
    Cannabis Photography
  • O
    Greeeeetinggs!
    • Latest: o7Panda
    • Today at 8:19 PM
    Introduce Yourself
  • how to Bubble washing and tips 2024
    • Latest: Bigalmoby
    • Today at 8:08 PM
    Concentrates & Processing
  • Cpurola's Outdoor grow in Southeast Michigan 2026
    • Latest: Bigalmoby
    • Today at 8:04 PM
    General Outdoor Growing
  • Home
  • Forums
  • Medical Cannabis Cultivation
  • Growroom Design & Setup
  • Considering HPS. Am I being crazy?
  • Contact us
  • Terms and rules
  • Privacy policy
  • Help
  • Home
Community platform by XenForo® © 2010-2026 XenForo Ltd.
Menu
Log in

Sign up

  • Home
  • News
  • Classifieds
  • Forums
    • What's new Featured content New posts New Articles New articles New products Latest activity
  • Social
  • Strains
  • Live
  • Learn
  • Brands
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?