Light efficiency modeling, PPFD optimization, vapor pressure deficit science, nutrient solution analysis, CO₂ enrichment modeling, and climate control energy science — grounded in controlled environment agriculture research.
Compare LED and HPS lighting systems across energy consumption, heat load, PPFD output, and projected yield impact. Calculates true photon efficacy (µmol/J) and canopy light distribution for your grow room dimensions.
| Brand / Model | Watts | µmol/J | Coverage | Price |
|---|---|---|---|---|
| Fluence SPYDR 2x | 645W | 2.9 | 4×4 ft | ~$1,299 |
| Gavita Pro 1700e | 645W | 2.6 | 4×4 ft | ~$899 |
| HLG 650R | 650W | 2.7 | 4×4 ft | ~$999 |
| Spider Farmer SE7000 | 730W | 2.85 | 5×5 ft | ~$799 |
| Gavita Pro 1000e DE HPS | 1000W | 1.75 | 5×5 ft | ~$450 |
Calculate Daily Light Integral (mol/m²/day) from PPFD and photoperiod. Compare against crop-specific DLI targets for cannabis, lettuce, tomatoes, herbs, and microgreens to optimize photoperiod scheduling.
Calculate total BTU/hr cooling and heating requirements for your grow room. Accounts for lighting heat load, plant transpiration, infiltration, envelope losses, and occupancy — outputs required tonnage and airflow (CFM).
| Brand / Model | Capacity | COP | SEER | Best For |
|---|---|---|---|---|
| Anden A130v2 | 3.5 ton | 4.2 | 18 | Mid-scale CEA |
| Desert Aire GrowAire | 2–20 ton | 3.8 | 16 | Commercial CEA |
| DryGair DG-6 | Custom | 4.0 | 17 | Greenhouse |
| Mitsubishi City Multi | 2–10 ton | 3.5 | 15 | Precision rooms |
Calculate Vapor Pressure Deficit (VPD) from temperature and relative humidity, compare against crop-stage targets, size dehumidification equipment based on transpiration rate and moisture load, and optimize RH for maximum yield.
| Brand / Model | Pints/Day | Amps | Sq Ft | Price |
|---|---|---|---|---|
| Quest 335 | 335 | 10.8A | up to 3,200 | ~$2,499 |
| Anden A710v2 | 710 | 22.5A | up to 7,000 | ~$4,299 |
| Santa Fe Ultra98 | 98 | 7.5A | up to 2,600 | ~$1,299 |
| Desert Aire DP050 | Custom | varies | Commercial | Quote |
Calculate required CFM for air scrubbing, carbon filter sizing, air exchange rate, and system efficacy. Models odor control for cannabis, pathogen reduction for CEA, and filter replacement schedule based on loading rate.
| Brand / Model | CFM | Filter Size | Life (hrs) | Price |
|---|---|---|---|---|
| Phresh Filter 8"×24" | 750 | 8"×24" | 24,000 | ~$199 |
| Can-Fan Max 12" | 1,709 | 12"×39" | 18,000 | ~$349 |
| AC Infinity CLOUDLINE | 351 | 6"×16" | 12,000 | ~$89 |
| Vivosun 6" Carbon | 400 | 6"×20" | 10,000 | ~$59 |
Calculate optimal CO₂ dosing rates, photosynthesis uplift at elevated CO₂ levels, generator vs tank economics, and the interaction between CO₂, light intensity, and temperature for maximum yield response.
These 6 science calculators form the technical foundation of AgrStak's Indoor Growing & Controlled Environment Agriculture platform — built to help growers maximize yield through precision energy management. Every model is grounded in horticultural science, photobiology, and HVAC engineering principles.
For ROI analysis, upgrade payback periods, energy cost-per-gram modeling, and full facility economics, see the 💰 Economics Calculators →
Enterprise tier unlocks real-world manufacturer comparison tables across lighting, HVAC, dehumidification, and air scrubber systems from Fluence, Gavita, HLG, Anden, Quest, Desert Aire, Phresh, Can-Fan, and more.