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Growing Cannabis (250W) Shopping List


by Nebula Haze

250W HPS grow lights

See More Growing Setups
 

250W HPS Grow Setup (For Hobbyist Growers)

Cost Estimates

  • Total Setup Cost: $605.00
  • Estimated Electricity Cost: $33-69/month (based on $0.12/kWH to $0.25/kWh - see breakdown)
  • Total Cost for Entire First 4-Month Grow (Setup + Electricity): $881 ($98-220/ounce)
  • Total Cost for Second Grow (Nutrients + Electricity): $324 ($36-81/ounce)

* Alternative/Equivalent LED Grow Light: Kind LED Grow Light "K3 L600"

Note: Because the 250W light runs significantly cooler and tends to grow smaller plants compared to the bigger HPS grow lights, the 250W setup uses a cheaper exhaust fan and carbon scrubber compared to the other HPS setups, which brings down the overall cost a bit.

Examples of Plants Grown in this Setup

2 days after auto-flowering cannabis seedlings sprouted

Auto-flowering cannabis plants at week 6 - cozy in their tent!

From left going clockwise: Dinafem Critical Jack, Dinafem Sour Diesel, Dutch Passion Blue AutoMazar

Original Amnesia cannabis plant under a 250W light

 

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Grow Space Recommended Alternative / Notes Cost
☐ Grow Tent A 2'x4'x5' grow tent (can be upgraded up to a 400W) A grow space smaller than 2'x4'x5' doesn't have room to fit a good hood/reflector $95.00
☐ Exhaust Fan Can Max 6" Fan - 334 CFM A quality 6" exhaust fan - hang inside tent to quiet $70.00
☐ Odor Control   http://www.growweedeasy.com/smell  
→ Carbon Scrubber 6-inch iPower Carbon Filter, 6" x 16" version Must be hooked up to exhaust fan to remove odors $65.00
→ Ona Gel (optional) Ona Gel in Original Scent Effective for hiding odors in living spaces, but do not place too close to plants or it may affect their smell! $18.00
☐ Thermometer IncuThermTM Digital Thermometer Hygrometer This model is meant for incubating chicken eggs, but I like how accurate it is. Anything that measures temperature & humidity will do. $15.00
☐ Small Fan(s) For inside the grow space - 1-2 small clip-on fans Use a small oscillating fan if it fits $30.00
       
Grow Light Recommended Alternative / Notes Cost
☐ 250W Grow Light   Alternative: Kind LED Grow Light "K3 L600"  
→ Hood Hydro Crunch Large Air Cooled Grow Light Reflector with 6" Duct & Glass Panel A 6" hood/reflector made for MH/HPS lights, air-cooled is best. $70.00
→ MH Bulb 250W Metal Halide bulb (for the vegetative stage) Any new 250W MH bulb (don't get used bulbs) $15.00
→ HPS Bulb 250W HPS Bulb (for the flowering stage) Any new 250W HPS bulb will work (don't get used bulbs). If possible get one rated at 32,000 initial lumens as it is the brightest 250W HPS bulb. This is the brand name (expensive) one I use if you're interested, though a generic bulb works just fine! $15.00
→ Ballast Yescom 250W (MH & HPS) Digital, Dimmable Ballast 250W digital ballast for MH/HPS (dimmable is nice) $80.00
☐ Rope Ratchets Get at least 2 pair; one pair for grow lights & one pair for the carbon filter Sometimes included with your grow light $16.00
       
Nutrients & pH Recommended Alternative / Notes Cost
☐ Base Nutrients Dyna-Gro Foliage Pro & Bloom (works for soil, coco coir or hydro) http://www.growweedeasy.com/nutrients $30.00
☐ Cal-Mag Supplement Botanicare Cal-Mag Plus http://www.growweedeasy.com/cal-mag $18.00
☐ pH Testing Kit General Hydroponics pH testing kit (with PH Up & PH Down) http://www.growweedeasy.com/ph $19.00
☐ Measuring Spoons Standard measurement spoons Most of us already have these in our kitchen $13.00
       
Growing Medium Recommended Learn More Cost
☐ Choose One      
→ Super Soil "Super Soil" is amended & composted soil that is alive with microorganisms http://www.growweedeasy.com/super-soil $40.00
→ Soil The most common hand-watered growing medium http://www.growweedeasy.com/soil $30.00
→ Coco Coir A hand-watered growing medium made of coconut husks http://www.growweedeasy.com/coco $30.00
→ DWC / Hydro Roots are suspended in oxygenated water, resulting in faster growth and bigger yields http://www.growweedeasy.com/hydro $125.00
       
Miscellaneous Recommended Alternative / Notes Cost
☐ Get Seeds (learn where to get seeds in the US)   http://www.growweedeasy.com/seeds Varies
☐ 24 Hour Timer Electrical timer by Hydrofarm Digital or mechanical - Any timer will do $10.00
☐ Plant Twist Tie Grower's Edge Twist Tie w/ Cutter Any twist tie meant for plant training (say you need something to hold up vines) $6.00
☐ Water Containers Get 1 and/or 5-gallon containers (like the ones you’d get with water delivery) For mixing nutrients and moving water $10.00
☐ Ducting & Ducting Clamps 6-inch flexible ventilation ducting & 3 pairs of 6” inch ducting clamps To connect carbon filter to hood to exhaust fan $10.00
☐ Check out this list of helpful grow tools you might not know about   http://www.growweedeasy.com/cool-growing-tools  
       
    Estimated Cost: $605.00
    (plus $30-125 for growing medium)

 

See Additional Grow Setups

 

Estimated Total Electricity Cost for 250W Grow Light and Fans ($0.12/kWh) = $33/month

This includes the cost of running the grow lights and fans.

Electricity Cost for MH/HPS Grow Light: $17/month

Total hours: 558 light hours/month (grow lights are on 18 lhours/day for 31 days)

MH/HPS Grow Light Wattage: Total of 250W 

At $0.12/kWh (everyone is charged different rates, but this is about average for cities), the monthly cost of electricity for the light is $17.

HOURS x COST/HOUR = 

558 x (0.12 x 0.250) = $17

 

Electricity Cost for Exhaust Fan: $11/month

Total hours: 744 fan hours (fan is on 24 hours/day for 31 days)

Exhaust Fan Wattage: 120W

At $0.12/kWh (everyone is charged different rates, but this is about average for cities), the monthly cost of electricity for the light is $11.

HOURS x COST/HOUR = 

744 x (0.12 x 0.120) = $11

 

Electricity Cost for 2 Clip-On Fans: $5/month

Total hours: 744 fan hours (fan is on 24 hours/day for 31 days)

Exhaust Fan Wattage: 30W each x 2 = Total of 60W

At $0.12/kWh (everyone is charged different rates, but this is about average for cities), the monthly cost of electricity for the light is $5.

HOURS x COST/HOUR = 

744 x (0.12 x 0.060) = $5

 

 

 

 

Estimated Total Electricity Cost for 250W Grow Light and Fans ($0.25/kWh) = $69/month

This includes the cost of running the grow lights and fans.

Electricity Cost for MH/HPS Grow Light: $35/month

Total hours: 558 light hours/month (grow lights are on 18 lhours/day for 31 days)

MH/HPS Grow Light Wattage: Total of 250W 

At $0.25/kWh (everyone is charged different rates, but this is about average for cities), the monthly cost of electricity for the light is $35.

HOURS x COST/HOUR = 

558 x (0.25 x 0.250) = $35

 

Electricity Cost for Exhaust Fan: $23/month

Total hours: 744 fan hours (fan is on 24 hours/day for 31 days)

Exhaust Fan Wattage: 120W

At $0.25/kWh (everyone is charged different rates, but this is about average for cities), the monthly cost of electricity for the light is $23.

HOURS x COST/HOUR = 

744 x (0.25 x 0.120) = $23

 

Electricity Cost for 2 Clip-On Fans: $11/month

Total hours: 744 fan hours (fan is on 24 hours/day for 31 days)

Exhaust Fan Wattage: 30W each x 2 = Total of 60W

At $0.25/kWh (everyone is charged different rates, but this is about average for cities), the monthly cost of electricity for the light is $13.

HOURS x COST/HOUR = 

744 x (0.25 x 0.060) = $11