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Growing Cannabis (400W) Shopping List


by Nebula Haze

400W HPS grow lights

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400W HPS Grow Setup (For Hobbyist Growers)

  • Average Yields: 7-14 ounces
  • Harvest every 4 months to get about 1.75 - 3.5 oz/month
  • Recommended 2-6 plants
  • Grow space is 2'x4'x5' or larger

Cost Estimates

  • Total Setup Cost: $744.00
  • Estimated Electricity Cost: $46-96/month (based on $0.12/kWH to $0.25/kWh - see breakdown)
  • Total Cost for Entire First 4-Month Grow (Setup + Electricity): $1128 ($81-161/ounce)
  • Total Cost for Second Grow (Nutrients + Electricity): $414 ($30-59/ounce)

* Alternative/Equivalent LED Grow Light: Kind LED Grow Lights "K5 XL750"

Check Out More Examples of Grow Setups

 


 

Download Shopping List PDF

Grow Space Recommended Alternative / Notes Cost
☐ Grow Tent A 4'x4'x6.5' grow tent (plenty of extra room, can be upgraded to a 600W) A tent or grow space that is 2'x4'x5' or larger $120.00
☐ 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 Phresh Filter, 400 CFM, 6" x 16" version Must be hooked up to exhaust fan to remove odors $130.00
→ 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. Any thermometer/hygrometer combo will do. $15.00
☐ Small Fan(s) For inside the grow space - 1-2 small oscillating fans Possibly get an additional 1-2 small clip-on fans $50.00
       
Grow Light Recommended Alternative / Notes Cost
☐ 400W Grow Light   Alternative: Kind LED Grow Lights "K5 XL750"  
→ 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 400W Metal Halide bulb (for the vegetative stage) Any new 400W MH bulb (don't get used bulbs) $14.00
→ HPS Bulb Digilux 400W HPS Bulb (for the flowering stage) Any new 400W HPS bulb will work (don't get used bulbs). If possible get one rated at 57,000 initial lumens as it is the brightest 400W HPS bulb. $45.00
→ Ballast Apollo Horticulture APL400 (MH & HPS) Digital, Dimmable Ballast 400W 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: $744.00
    (plus $30-125 for growing medium)

 

View Additional Grow Setups

 

Estimated Total Electricity Cost for 400W Grow Light and Fans = $96/month

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

Electricity Cost for MH/HPS Grow Light: $56/month

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

MH/HPS Grow Light Wattage: 400W 

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...

HOURS x COST/HOUR = 

558 x (0.25 x 0.400) = $56

 

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...

HOURS x COST/HOUR = 

744 x (0.25 x 0.120) = $23

 

Electricity Cost for 1 Clip-On Fan: $6/month

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

Exhaust Fan Wattage: 30W

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...

HOURS x COST/HOUR = 

744 x (0.25 x 0.030) = $6

 

Electricity Cost for Oscillating Fan: $11/month

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

Exhaust Fan Wattage: 55W

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...

HOURS x COST/HOUR = 

744 x (0.25 x 0.055) = $11

 

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