Patrick Harders
CEOPatrick Harders, LC, is the founder of Dayloom, a luxury landscape lighting design firm based in Northern Virginia, and co-founder and head luminaire designer at Sterling Lighting, a manufacturer of solid brass and bronze architectural fixtures. He holds the Lighting Certified credential from the NCQLP and has spent nearly three decades in landscape lighting, beginning in 1998. His work has earned nine AOLP design awards and three LIT Lighting Design Awards, including the 2025 AOLP Commercial Excellence Award for The Barns at Wolf Trap. At Sterling, Patrick leads luminaire development built around high color rendition sources and precision optics, translating photometric theory into fixtures that perform in the field.
STERLING LIGHTING: Understanding Perfect Light
Most outdoor lighting looks acceptable. Very little of it looks correct. The difference is measurable. This session explores how light quality, optics
…Most outdoor lighting looks acceptable. Very little of it looks correct. The difference is measurable. This session explores how light quality, optics, and documentation work together to create better, more intentional outdoor lighting. Attendees wil
…Most outdoor lighting looks acceptable. Very little of it looks correct. The difference is measurable. This session explores how light quality, optics, and documentation work together to create better, more intentional outdoor lighting. Attendees will learn how to interpret TM-30 reports beyond traditional CRI, understand how LED optics and beam control affect real-world performance, and document systems in a way that preserves design intent and
…Most outdoor lighting looks acceptable. Very little of it looks correct. The difference is measurable. This session explores how light quality, optics, and documentation work together to create better, more intentional outdoor lighting. Attendees will learn how to interpret TM-30 reports beyond traditional CRI, understand how LED optics and beam control affect real-world performance, and document systems in a way that preserves design intent and supports long-term serviceability. The goal is to show that “perfect light” isn’t simply a matter of taste, it can be specified, measured, documented, and reproduced. Key Takeaways - Interpret TM-30 reports, including Rf, Rg, and color vector graphics, to evaluate real-world color rendition. - Evaluate LED optics and beam control to match photometric performance to the application. - Create fixture schedules and as-built documentation that preserve design intent and support long-term serviceability.
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