For schools & universities
Every student runs on a clock. Most classrooms ignore it.
Earthlight models the Human ROI of circadian lighting for education — turning sharper attention, steadier attendance, and calmer rooms into terms districts and campuses can budget against.
01 — The problem
Learning has a time of day. Classrooms don't.
Attention, memory, and mood rise and fall on a daily clock — and developing students are especially sensitive to it. Yet most classrooms run on flat fluorescent light from first bell to last, working against the very alertness they're meant to support. The cost shows up in focus, behavior, and attendance long before it reaches the facilities budget.
Students
lose focus, rest, and engagement.
Teachers
manage the restlessness and the absences.
Districts
absorb the impact on outcomes and funding.
02 — The Human ROI
Where the Human ROI shows up
Earthlight quantifies the levers that matter to a district or campus — so the case for circadian light is made in terms you can plan and fund around.
Attention & academic performance
Brighter, well-timed light supports the daytime alertness that learning depends on.
Attendance
Where funding follows daily attendance, even small improvements carry real budget weight.
Behavior & classroom climate
Better-regulated sleep and light can ease the restlessness behind behavioral incidents.
Support for neurodiverse learners
Calmer, tunable light helps create environments where more students can settle and focus.
Teacher retention
A better room is a better place to teach — and a reason to stay.
Enrollment & differentiation
Modern, evidence-based learning environments are a story families and students choose.
03 — The science
Young circadian systems are the most sensitive of all
Children's and teenagers' internal clocks are still developing — and adolescents naturally run late, colliding with early start times. Bright daytime light supports daytime alertness and protects the nighttime sleep that learning and mood depend on.
Earthlight grounds its models in this circadian science and the standards advancing it, then translates it into terms districts and campuses can act on.
04 — How it works
From light to line item
01
Walk the campus
We map how light moves through classrooms, common areas, and study spaces across the school day.
02
Model the Human ROI
We translate circadian impact into the terms districts plan around: attention, attendance, behavior, and retention.
03
Protect the spec
We give your facilities and design teams the numbers to defend circadian lighting before it's value-engineered out.
05 — Questions
Before you ask
Is Earthlight a lighting product?
No — Earthlight is decision-support software. We model and quantify the human ROI of circadian lighting so the right design survives budgeting. We work alongside your designers and vendors.
New construction or existing buildings?
Both. Modeling the ROI before value engineering protects the design, and retrofits often deliver the fastest classroom wins.
Does the evidence actually hold up?
We build on established circadian science and recognized standards like the IES and the WELL Building Standard. The Review shows the assumptions behind every number.
Who is this for?
Facilities and operations leaders, superintendents, campus planners, and design teams across K-12 and higher education.
See the Human ROI for your schools.
A 20-minute review that turns circadian light into the attention, attendance, and outcome numbers districts and campuses use to decide.