Light
PPFD, DLI, illuminance, correlated color temperature, solar irradiance and related optical measurements.
About AquaHorti
Measure first.
Decide with context.
AquaHorti develops measurement-focused tools for horticulture, indoor lighting, reef aquariums, UV, solar irradiance and related environmental measurements.
What we focus on
Tools designed around quantities people actually need to measure.
AquaHorti products are organized around measurable quantities rather than a single product category.
Environment
CO₂, temperature, humidity and VPD for applications where light must be interpreted together with environmental conditions.
UV & Optical Energy
UVA, UV Index, selected wavelength irradiance and other application-specific optical measurements.
Application areas
Different environments require different measurements.
AquaHorti tools are developed for several distinct measurement workflows rather than assuming one instrument fits every application.
Horticulture
Plant light and growing environments
Measure grow-light intensity, daily light exposure and environmental conditions using quantities such as PPFD, DLI, CO₂, temperature, humidity and VPD.
Indoor lighting
Lighting surveys and workspace measurements
Evaluate illuminance, foot-candles, correlated color temperature and multi-point lighting conditions in commercial and indoor spaces.
Reef aquariums
Underwater light measurement and control
Measure underwater PAR and UVA, evaluate spatial light distribution and work with controllable reef-light systems.
UV, optical & solar
Application-specific irradiance measurements
Measure selected UV wavelengths, red and near-infrared energy, sunlight UV, solar irradiance and other optical quantities where wavelength and measurement method matter.
Products and knowledge
A meter provides a number. The context explains what it means.
AquaHorti combines product information with a technical knowledge base so that measurements can be interpreted more carefully.
Product pages explain what each instrument measures, how it is used, the workflow it supports and relevant limitations.
The AquaHorti Blog explains the concepts behind those numbers, including PAR, PPFD, DLI, CO₂, VPD, reef lighting, UV and measurement workflows.
The goal is not to turn every measurement into a universal target. The same value can have different meaning depending on species, light source, spectrum, photoperiod, environment, sensor position and measurement method.
Product information
What an AquaHorti instrument measures, how it works and where
it fits into a measurement workflow.
Measurement guides
Explanations of units, measurement concepts and practical
workflows.
Application context
Why one numerical reading should not automatically become a
universal recommendation.
Our measurement approach
Different types of technical information should be clearly separated.
AquaHorti aims to distinguish what was measured, what comes from published research, what belongs to a product specification and what is practical guidance.
AquaHorti measurements
Values collected under a stated AquaHorti test setup or measurement condition should be interpreted within that setup.
Published research
Findings from external scientific or technical sources should remain connected to the species, conditions and methods used in the original research.
Practical guidance
Starting ranges and workflows can help with decisions, but they should not be presented as universal biological optima.
Product specifications
Product capabilities and functions describe the instrument itself and should remain separate from biological or application recommendations.
Why context matters
The same number does not always mean the same thing.
Measurement values become more useful when the surrounding conditions are recorded and understood.
A PPFD reading may need to be interpreted together with photoperiod, spectrum, DLI, species, growth stage, temperature, CO₂ and measurement position.
An underwater PAR value can be affected by depth, fixture settings, water clarity, aquascape, sensor position and a coral's previous light environment.
A LUX measurement describes illuminance, but it does not by itself describe spectral distribution, color temperature or spatial uniformity.
A UV reading is only meaningful when wavelength range, unit and measurement method are clear.
Measure at the relevant position
Sensor placement can change the value and the decision based
on that value.
Record the conditions
Height, time, spectrum, environment and operating settings
provide essential context.
Compare repeatably
Consistent measurement methods make before-and-after
comparisons more useful.
Explore AquaHorti
Start with the measurement question you need to answer.
Use the product selector, glossary and knowledge base to move from terminology to measurement and application.
Product selection
Choose the Right Meter
Start with the quantity you need to measure and compare AquaHorti tools by application.
Open product selection guide →Measurement fundamentals
Measurement Glossary
Understand PAR, PPFD, DLI, LUX, CCT, UVA, VPD and other measurement terms.
Open the glossary →Technical knowledge
AquaHorti Blog
Explore guides on horticulture, reef lighting, optical measurement and environmental measurement.
Browse the knowledge base →Horticulture
Plant & Growing Environment Measurement
Explore PPFD, DLI, CO₂, VPD and related measurement workflows for plants and controlled environments.
Explore horticulture measurement →Reef lighting
Reef Lighting Measurement
Learn how underwater PAR, spectrum, placement and measurement position affect reef-lighting decisions.
Explore reef lighting →Products
Explore AquaHorti Tools
View current AquaHorti products for light, UV, environmental and application-specific measurements.
View all products →
Contact AquaHorti
Product or technical question?
For product information, measurement questions or other AquaHorti inquiries, contact us by email.
Email
zhourong202488@163.com