The Architectural Baseline: Precision downlighting engineered for open commercial spaces
Location: San Francisco, CA
Products: M Series 4″ Downlight
Architect/Lighting Design: Studio Blitz
Electrical Contractor: Cupertino Electric
Photography Credit: Garrett Rowland
Fenwick’s 41,500-square-foot San Francisco office spans three connected floors with vastly different lighting environments, ranging from a sunlit, bay-facing curtain wall to deep interior corridors, open desking, and dedicated lounge areas. Designed by Studio Blitz, the project required a single lighting system capable of establishing a unified luminous quality across reception, the work café, specialty bars, and boardroom suites, regardless of daylight conditions or structural variations.
To solve this across scale, DMF Lighting’s M Series platform served as the architectural foundation. Rather than specifying different fixture solutions for each distinct zone, the design team deployed more than 250 M Series 4″ new-construction downlights across both floors. Recessed into the flat ceiling planes, the M Series delivers a continuous, controlled wash of ambient light. This creates a consistent luminous plane that balances natural daylight while seamlessly connecting deep interior paths to the perimeter glass.
By standardizing on one versatile DMF family, the space achieves strict color consistency and precise beam delivery throughout every layout transition. The M Series integrates quietly into the architecture, maintaining high lighting performance across open offices and high-traffic corridors while providing the clean baseline necessary for custom decorative pendants and accent coves to stand out.
The high fixture count also presents an operational consideration: three continuously staffed floors cannot simply go dark for routine maintenance. DMF’s modular, field-serviceable architecture allows drivers or light engines to be replaced entirely from below the ceiling, fixture by fixture, without disturbing ceiling tiles or scheduling facility downtime around the firm’s operating hours. The same modular construction that creates a unified ceiling plane on day one keeps the system easily serviceable for years to come.
The M Series is DMF’s most versatile product platform, engineered to address complex commercial building code and structural requirements within a single modular system. Centered around a compact, 4″ plug-and-play LED module, the platform maintains a completely unified aesthetic across an entire project. Design teams can specify IC-rated, fire-rated, or shallow plenum housings to meet varying building code and plenum requirements while maintaining the same trims, modules, and beam distributions below the ceiling plane.
Engineered with a folded optic designed to prioritize glare control rather than raw output, the module delivers smooth, comfortable illumination that sits easily over open desking and glass-fronted conference rooms without creating harsh hotspots on screens or glazing. This platform unity supports color consistency, identical aperture aesthetics, and seamless optical performance across every zone. By decoupling structural code requirements from the visible lighting elements, the M Series delivers a cohesive design that remains simple to specify, install, and maintain.
Blitz is a California-based design firm, with studios in San Francisco and Los Angeles specializing in architecture, interiors, and experiential design for commercial spaces. The team’s information-driven approach treats design as a fully collaborative effort, bringing together architects, interior designers, graphic designers, and strategists to create detailed, human-centered places. Their work spans strategy, branding, and build services, with an emphasis on thoughtful technical integration that lets a space’s architecture and materials take center stage.
Cupertino Electric (CEI) is a San Jose-based electrical engineering and construction firm founded in 1954 with offices across the Bay Area and a national footprint in commercial construction, data centers, and renewable energy. Now part of Quanta Services, CEI has built its reputation on large-scale, high-rise commercial electrical work throughout Northern California.
