Cannabis Grow Lights: Cheat Sheet

Written By: Andrew Nunez-Alvarez

Fluorescent (T5) Lighting Metal Halide (MH)
Lighting
High Pressure Sodium (HPS)
Lighting
· Promotes sufficient overall growth for all stages of development

 

 

· Full Spectrum Wavelength Light

o    Works well for all stages of growth
·  Low Heat Signature

 

·  No ballast required
·  Can be placed on humidity domes

 

· Significantly cost effective compared to MH + HPS systems

 

· Ideal for starting off seeds in rockwool or soilless mix until transplant, indoor herb garden, salad garden, vegetable garden, micro succulent/tropical garden and bonsai trees

 

·  Wattage power ranges from 20w – 60w

o    Potential yield will greatly depend on environmental grow conditions within your set up

o    Would require 2-4 or more bulbs daisy chained together inside a mylar-lined tent for optimal and efficient useage
·  1x 50W (3 feet) T5HO Sunblaster running @ 24 hours on cycle costs roughly $0.15/daily for hydro cost

· Specifically promotes greater vegetative growth

 

 

· Ideal light to start with up until bloom

 

· Spectrum Wavelength 420-600 (nm)

o    Blue/White light colour

o    Similar to the shade of white that a T5 bulb outputs

 

·  $0.78/day Hydro Cost
12 hours on from 7:00pm-7:00am
·  200w
propagating/small tent/closet grow

 

·  400w
small-medium size tent grow
·  600w
medium size tent grow
·  800w-1000w
large scale grow projects
·  Make sure to have an appropriate ballast for your bulb wattage
·  Heat signatures will become an issue the greater the wattage of bulb

o  Plan ahead and accommodate for more heat exhaust out of your grow area

 

· Specifically promotes greater bud development and flower production

 

 

·  Ideal light to switch to before buds start to visibly develop on plant

 

· Spectrum Wavelength 550-750 (nm)

o    Yellow/Orange/Red light colour
·  $0.78/day Hydro Cost

12 hours on from 7:00pm-7:00am

 

·  200w
propagating/small tent/closet grow
·   400w
small-medium size tent grow
·  600w
medium size tent grow
·  800w-1000w
large scale grow projects

 

·  You must have an appropriate ballast for your bulb wattage
· Heat signatures will become an issue the greater the greater the wattage of bulb

o  Be sure to plan ahead and accommodate for more heat exhaust out of your grow area