Architectural interior with sculptural low-voltage ceiling lighting

Lighting Designers

Centralized DC Power for Cleaner Ceilings and Greater Lighting Design Freedom

Move power conversion out of the ceiling while supporting compatible architectural luminaires, low-end dimming, and flexible controls.

Cence · Lighting Designers

What Centralized DC Power Unlocks for Designers

Engineered for the details you specify around

Protect Ceiling Planes with Low-Voltage DC Power

When every fixture needs its own driver, junction box, and line-voltage pathway, the ceiling becomes a coordination problem before the lighting vision is even installed. Cence centralizes power conversion away from the ceiling, helping reduce plenum clutter and giving designers more room to execute ultra-shallow reveals, concealed linear details, tight millwork, and clean architectural finishes.

Specify Multi-Vendor UL 2108 & DC Compatible Luminaires

Cence provides a patented, centralized DC power distribution infrastructure designed to power compatible low-voltage DC luminaires and remote-driver fixtures. When installed as part of the listed system, it can support fixtures evaluated to applicable UL 2108 and UL 1598 requirements. Specify compatible fixtures from architectural, linear, and specialized lighting partners offering 24V DC constant-voltage tape or constant-current DC engines while maintaining a unified low-voltage power backbone, subject to approved system configurations.

Achieve Smooth Precision Dimming and Flicker Mitigation

Low-end dimming performance is a common limitation of standard drivers. Because the human iris expands in low light, a standard 1% dimming level can still appear substantially brighter than the stated output percentage. Cence is designed to provide stable, high-resolution digital DC power management and can achieve a 0.4% mathematical low-end dimming threshold under specified system and load conditions. Highly regulated, high-frequency digital current modulation can reduce visible strobe effects and micro-flicker compared with traditional AC setups while supporting consistent color temperature through the low-end fade, subject to compatible luminaires, controls, and validated performance data.

Design Priorities

Preserve Design Intent

Every project balances aesthetics, performance, compliance, and sustainability. Explore the priorities that matter most to your design.

  • The Elimination of Plenum Clutter: See how removing localized driver boxes from the ceiling space allows for fluid, uninterrupted gypsum board and complex architectural feature layouts.
  • True 0.4% Low-End Dimming Precision: Outperform standard 1% dimming bottlenecks. Cence delivers smooth, continuous logarithmic transitions designed to overcome the human eye’s perceived brightness trap without dropping out early or color-shifting at low levels.
  • NEC Class 2 Compliance (Articles 725 & 411): Cence limits output to 100VA per channel. When installed as part of the listed system, keeping power within applicable Class 2 thresholds can reduce downstream conduit requirements, simplify inspections, and help preserve design details, subject to the adopted code and installation conditions.
  • Plenum-Rated Cabling (CL2P): The system can use applicable Class 2 plenum-rated wiring (CL2P), which can support flexible routing through shallow ceilings and tight millwork while reducing the need for heavy junction boxes or armored cable, subject to the listed system instructions and applicable code.
  • Certified Standards (UL 2108 & UL 916): Cence system components are designed for evaluation to applicable low-voltage lighting and energy-management requirements. When installed as part of the listed system, the architecture can support compatible UL 1598 luminaires from approved fixture partners, helping reduce specification and job-site risk. Confirm the listing, approved component combinations, installation instructions, and applicable code for each project.
  • Defined Demarcation & Trade Boundaries: Clear physical separation between line-voltage supply and low-voltage Class 2 distribution at the central Hub can establish a defined scope boundary and help reduce trade-overlap disputes between electrical contractors and low-voltage installers during inspection and handover, subject to the project documents and adopted code.
  • Reducing the Conversion Penalty: Traditional AC-powered lighting schemes can incur energy losses during AC-to-DC conversion at individual fixture drivers. By centralizing conversion at the utility-room hub, Cence can improve system-level conversion efficiency and support operational-carbon reduction strategies and LEED, WELL, and net-zero project goals. Actual results depend on loading, conversion efficiency, cable losses, conductor sizing, run length, system configuration, and operating profile.
  • Direct DC Microgrid Coupling: The centralized DC lighting backbone can support direct integration with compatible solar PV and battery energy storage systems, potentially reducing selected AC/DC conversion stages and improving total building energy performance. Actual performance depends on the approved system design, voltage compatibility, protection requirements, and applicable code.
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System Integration Mapping

Hardware layout at a glance

Actual system configuration, output levels, and code compliance depend on the approved design and listed system limits for each project.

Diagram showing the Cence hub connected to Class 2 low-voltage circuits powering ceiling fixtures in a modern office, with power input, control input, and output specifications labeled

Select an architectural topology

Power DeliveryAll AC-to-DC conversion and current regulation occur inside the central Hub. Direct 24V DC or Constant Current output over 32 Class 2 channels (less than 100W/channel).
Control RoutingCentralized hub-level inputs supporting DALI command interfaces, 32 DMX channels, and 32 dry contact inputs (on/off and hold-to-dim).
Supported Loads24V DC architectural downlights, continuous linear slots, wall grazers, coves, pendants, custom millwork, and remote-driver CC LED engines.
Design AdvantageCan remove distributed drivers, remote boxes, and access hatches from the ceiling plenum for compatible configurations, helping preserve clean architectural surfaces. Final equipment locations depend on the selected luminaires, listed system configuration, project design, and applicable code.
Power DeliveryThe central Hub distributes 48V–60V DC over Class 2 cabling at less than 100W per channel to help manage voltage drop on longer commercial cable runs. Compact DC-to-DC Remote Nodes step power down locally at the luminaire. Maximum run length and conductor size depend on load, voltage-drop calculations, listed system limits, installation conditions, and applicable code.
Control RoutingLocalized control at the Remote Node supporting 0–10V, DALI, dry contact, and wireless mesh protocols across 2 independently controllable channels per node.
Supported LoadsSingle Static, Dual Static, Parallel Static, and Single Tunable White luminaires (up to 96W per node, stepping down to 36V or 24V DC).
Design AdvantageCan provide multi-channel and tunable-white control over extended distances while reducing the need for heavier wire gauges or oversized plenum enclosures. Performance depends on the selected topology, compatible luminaires and controls, conductor sizing, run length, and validated system limits.
Power DeliveryDedicated Class 2 emergency circuits fed via central normal/emergency power transfer at the Hub, maintaining regulated DC power during utility loss.
Control RoutingWhen configured and listed for the application, an automatic local override can command designated emergency fixtures to the required emergency output upon loss of normal power across compatible wireless, 0–10V, and DALI control networks. Output level and sequence of operation must follow the approved emergency-lighting design and applicable code.
Supported LoadsCompatible code-required egress luminaires, illuminated exit signs, and night-lights may be integrated into the low-voltage system when included in the listed and approved emergency-lighting configuration.
Design AdvantageCan support life-safety and building-code requirements while reducing the need for bulky external line-voltage transfer relays or emergency shunts in the architectural space, when installed as part of the listed emergency-lighting system and subject to applicable code.
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Sustainability

Reduced embodied carbon meets reduced operational carbon

Embodied Carbon Reduction (Dematerialization)

Drastic Metal & Plastic Reduction: Centralizing power conversion removes individual driver enclosures, steel junction boxes, and heavy conduits across the entire ceiling plane.
Streamlined Wiring Infrastructure: Replaces heavy line-voltage copper cabling with lightweight, low-voltage Class 2 distribution.
Preventing Ceiling E-Waste: Driver failure is the #1 point of LED failure. Centralized, modular power electronics inside the electrical room are serviced individually, preventing prematurely discarded luminaires from ending up in landfills.
Preserving Ceiling Architecture: Removing in-ceiling drivers eliminates unsightly access hatches, protecting the visual purity of plaster, wood baffle, and custom acoustic ceiling details.

Operational Carbon & Energy Efficiency

Eliminating Conversion Losses: Traditional AC systems convert power from AC to DC at every individual fixture, losing 10% to 18% of energy as waste heat inside the air plenum. Centralizing conversion at the Hub optimizes electrical efficiency across all connected channels.
Direct Renewable & Microgrid Integration: Cence accepts direct DC power inputs (48V–58V DC). This enables seamless coupling with solar panels and Battery Energy Storage Systems (BESS) without energy-wasting DC-to-AC-to-DC inversion steps.
Support for Green Building Certifications: Simplifies credit acquisition for LEED v4.1 (Energy Performance & Material Ingredients) and WELL v2 (Light & Thermal Comfort/Flicker Mitigation).

Frequently asked questions

How does low-voltage power distribution maintain a ceiling's aesthetic integrity?

It shifts the power conversion hardware out of sight. By delivering clean Class 2 DC power directly to architectural fixtures, the need for visible junction box covers, bulky transformers, and driver access hatches in the ceiling is eliminated. Designers gain total aesthetic control, ensuring acoustic panels, wood baffles, and custom plaster ceilings remain uncluttered and visually pure.

How does Cence handle voltage drop over long low-voltage commercial cable runs?

While standard low-voltage systems suffer from severe voltage drop over extended distances, Cence resolves this constraint through patented digital line regulation technology. By dynamically monitoring and regulating electrical parameters across the run, Cence maintains uniform power levels and consistent light output across long commercial circuits without forcing designers to specify oversized copper wire gauges.

How does a centralized low-voltage Class 2 power impact ceiling clearance and millwork details?

Because Cence Power distribution line operates strictly within safe Class 2 low-voltage thresholds, it does not require rigid metal conduits or bulky J-boxes at every fixture interface. This drastically reduces physical hardware volume in the plenum, allowing designers to execute ultra-shallow ceiling clearances, razor-thin drywall reveals, and tight millwork integrations impossible with traditional line-voltage wiring.

How does Cence Class 2 low-voltage DC power distribution system compare to Power-over-Ethernet?

PoE introduces significant friction for commercial lighting since it has strict 100-meter cable distance caps, expensive IT port costs, and messy thermal cable bundling. Cence avoids that friction without forcing you to plan an expensive IT infrastructure.

How does centralizing DC power improve long-term building maintenance and circularity?

Driver failure is the number one point of maintenance for LED lighting. In traditional setups, servicing a failed driver requires ladders and open ceiling panels. With Cence, facilities teams (subject to local code and AHJ approval) can simply hot-swap modular power components in seconds inside the electrical room.

Has Cence low-voltage DC power distribution been deployed in healthcare facilities?

Yes. Cence is installed in healthcare environments where power, reliability, strict low-flicker performance, and minimal operational disruption are essential. Centralizing power conversion in utility rooms allows healthcare facilities to service lighting infrastructure without entering sterile patient areas, surgical suites, or cleanrooms.

Has Cence low-voltage DC power distribution been implemented in commercial retail environments?

Yes, national retail brands and commercial real estate developers utilize Cence to power accent lighting and decorative lighting.

Has Cence low-voltage DC power distribution been used in education and campus facilities?

Yes, educational institutions deploy Cence Class 2 low-voltage DC power across campus facilities and research hubs to achieve modern architectural and operational goals. Centralizing power conversion in the utility room allows university spaces to execute a clean open ceiling design by eliminating conduits, junction boxes, and bulky AC drivers from occupied areas.

How does Cence help lighting designers satisfy client decarbonization and embodied carbon targets?

Cence supports sustainable lighting specifications by streamlining low-voltage power distribution. It eliminates individual aluminum driver housings, steel junction boxes, and heavy conduits at each fixture point, reducing raw materials across the ceiling plane, while also removing 10%–18% AC-to-DC conversion heat loss in the plenum to reduce overall building energy consumption.

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Regulatory & Compliance Note: System capabilities, performance metrics, plenum wiring configurations, trade boundaries, and emergency egress routing are subject to compatible luminaires, listed system configurations, local electrical codes, and AHJ (Authority Having Jurisdiction) approval.