CULTILIGHT KNOWLEDGE CENTER
Horticultural Lighting Knowledge Center
Practical guides, calculators and engineering resources for commercial greenhouse, indoor and vertical farming lighting.
PLANNING TOOLS
Lighting Calculators & Project Tools
Use practical planning tools to estimate lighting requirements, understand energy use and prepare the information needed for a commercial lighting project.
DLI Calculator
Calculate daily light integral from average PPFD and lighting duration.
Supplemental PPFD Calculator
Estimate the supplemental light needed to reach a target DLI.
Energy Cost Calculator
Estimate connected load, energy consumption and operating cost.
LED vs HPS Energy Savings Calculator
Compare estimated annual electricity use, operating costs and potential savings when evaluating LED and HPS horticultural lighting systems.
Lighting Project Questionnaire
Prepare the essential details for a project specific lighting recommendation.
EXPLORE BY TOPIC
Browse Horticultural Lighting Topics
Explore technical guidance organized around the principles, environments and crop-specific considerations that shape effective horticultural lighting projects.
Lighting Fundamentals
Understand PAR, PPF, PPFD, DLI, spectrum, efficacy and photoperiod.
Lighting System Design
Explore light distribution, fixture spacing, mounting height, electrical planning and controls.
Growing Environments
Compare lighting strategies for greenhouses, indoor farms and vertical cultivation.
Crop Lighting Guides
Review practical lighting considerations for tomatoes, lettuce, fresh herbs, roses and other commercial crops.
Calculators and Engineering Tools
Use planning tools to estimate DLI, supplemental PPFD, energy consumption and project requirements.
START WITH THE ESSENTIALS
Featured Horticultural Lighting Guides
Start with essential concepts and practical guidance for planning effective supplemental and controlled-environment lighting.
Understanding PPFD for Commercial Growing
Learn what PPFD measures, how to interpret light maps and why distribution matters as much as average intensity.
PAR, PPF, PPFD and DLI Explained
Understand the essential lighting measurements used to evaluate fixtures and plan horticultural lighting systems.
Greenhouse Supplemental Lighting Guide
Learn how crop requirements, natural sunlight, photoperiod and seasonal conditions influence greenhouse lighting design.
PROJECT-SPECIFIC SUPPORT
Need Help Planning Your Lighting Project?
Every commercial growing operation has different crop, facility and production requirements. Share your project details with CultiLight, and our team will help identify a lighting approach suited to your objectives.