Quote Originally Posted by Revanche21
ok so word is that the Procyon is the equivalent of a 250-400w HPS

or about 325w average estimate

I did some simple estimations comparing 2 Procyons vs 1 HPS@600w

The initial cost is about 600$ for a Procyon and the HPS is about 400$ for a high-end lumatek ballast and high quality bulb (I understand the price can drop depending on type of ballast purchased, magnetic vs digital, but for my purpose, I spent 400)

so:
2x Procon = 1200$
1x HPS = 400$

A full cycle for myself would be:
24/0 = 14 days and 12/12 for 65 days; for a 79 day Total

Total's below are averages for the entire 79 day cycle
125W Procyon:
1,765w a day or 53.0kwh in a 30 day period

250w HPS:
3,531w a day or 105.9kwh in a 30 day period

400w HPS:
5,650w a day or 169.5kwh in a 30 day period

600w HPS:
8,476w a day or 254.3kwh in a 30 day period

1000w HPS:
14,127w a day or 423.8kwh in a 30 day period

Procyon Pros over an HPS:
-50,000 hours until 30% lumen degradation (vs 25,000 life of an HPS bulb which can cost 50-100$ per bulb)
-If you have 2, you will have better positioning
-Cooler operation for closer positioning

Procyon Cons:

-Initial cost

*2 Procyons should give you an estimated 500-800w or 650w estimated average equivalent of an HPS

I wasn't very sure on how to interpret my energy bill from my local electric company but my estimates suggest:

600w HPS = 61$ average/30 days
2 x Procyons = 25$/30 days

a monthly saving of 36$ on energy

initial cost (Procyonx2) - HPS600 = 800$

800/31$ = 25.8 months before you get your money's worth
(The cost of bulb replacement is probably minisucle, but helps in the long run)

However, theoretically, the 2 Procyon's should get a much better yield

**I know a lot of these numbers aren't exact and calculating this was somewhat difficult to be exact and to apply to others as well. Take what you can from my own calculations and let me know if I've made any obvious errors!
***Note that cost of electricity for me is tiered so saving energy saves lots of money (example: $0.12 for first 73.2kwh, $0.13 for next 21.96kwh, and $0.24 for everything after that)

:rastasmoke:
Everything looks good I guess it depends on the yield and quality I guess well have to see i will kepp ya posted!:-)