Building tomorrow's hospitals, clinics, and government facilities — with Keystone Lighting precision and speed.
Light made easy. Service made personal.
In partnership with Keystone Technologies of Pennsylvania, DHI delivers complete lighting systems — from hospital towers and surgical suites to government facilities and environmental lighting zones — built on quality, compliance, and care.
✨ Light made easy. Service made personal.
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Hospital interior & Keystone fixtures
Complete lighting expertise across the sectors we serve.
Hospitals, clinics, operating suites, and medical offices.
Executive offices, education, and community facilities.
VA, Federal, State & Local procurement.
Wildlife-friendly, dark-sky compliant, coastal lighting.
Instant quotes & rapid fulfillment from Keystone's national network.
From single projects to multi-site rollouts.
BIM, photometrics, layout & energy optimization.
Dedicated account & after-sales assistance.
Product & Design Integration
Keystone's industry-leading LED solutions cover every specification: tubes, downlights, troffers, high bays, controls, and emergency systems.
Our lighting designers collaborate directly with your architects, MEPs, and project engineers to optimize fixture placement, controls, and sustainability outcomes.
View Product CatalogMembership & Partner Programs
Exclusive to builders, healthcare systems, and government entities.
Environmental & Habitat Lighting
We provide wildlife-compliant, turtle-safe, and dark-sky certified lighting for environmental zones and government projects — protecting coastal habitats and night skies without compromising on performance.
Turtle-safe coastal & dark-sky compliant fixtures
Trusted by the Southeast's most respected builders and healthcare leaders
Partner with us for fast, precise, and sustainable lighting solutions.