By Vision Visual Custom Sign Company
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September 29, 2025
Many existing illuminated sign cabinets—pylon signs, wall signs, channel letter back lit boxes—still rely on fluorescent tube lighting. While these have served reliably for decades, the incoming regulatory landscape and the rapid advancement of LED technology make conversion not just desirable, but increasingly unavoidable. Colorado’s new law banning the sale and distribution of most fluorescent lighting starting January 1, 2025 (House Bill 23 1161) makes it critical for sign owners in the state to make decisions on the right LED retrofit service for their signage. Colorado’s Fluorescent Ban & What It Means for Signage Legislative Background Colorado’s House Bill 23 1161 (signed in 2023) phases out “general purpose fluorescent lighting” by January 1, 2025. As of that date, the manufacture, sale, or distribution of many linear fluorescent tubes (e.g. T8, T12) and compact fluorescent lamps (CFLs) becomes prohibited in Colorado. Implications for Sign Owners After January 1, 2025, sourcing replacement fluorescent tubes or ballasts in Colorado will become illegal (and impractical). Sign cabinets reliant on fluorescent lighting will become harder to maintain or repair using conventional parts. Businesses that fail to plan and convert may face compliance risk, disruption, or forced replacement under tight timelines. Why LED Is the Better Choice for Sign Cabinets Having Vision Visual Custom Sign Company Upgrade your signs to LED isn’t just compliance—it delivers real, measurable benefits: Advantage & Benefits in Sign Cabinets Energy Efficiency = LED modules or tubes typically use 50–70% less power than equivalent fluorescent setups (especially older high-output T12 systems). Longer Life / Reduced Maintenance = LED modules in sign cabinets are often rated 50,000 hours or more—or many years of service—reducing routine lamp replacement. Uniform Illumination / Better Optics = Modern LED retrofit systems offer optical control, lensing, and module spacing to reduce striping, hotspots, and dark zones—producing more uniform face illumination. Cold- & Startup Performance = Fluorescent lamps degrade in cold weather and often flicker or struggle at startup. LED systems deliver instantaneous illumination in a wide temperature range. Control & Dimming = LED drivers enable dimming, timers, and integration with building automation, allowing brightness reduction during low-traffic hours. No Mercury / Safer / More Sustainable = LED systems are mercury-free, reducing environmental risk and disposal concerns (important under stricter regulations). Reduced Heat in Sign Cabinet = Less waste heat can reduce stress on sign internals, power supplies, gasketing, and face materials. Because of these advantages, converting a fluorescent-lit sign to LED often pays back through energy and maintenance savings in a few years (depending on size, runtime, and energy rates). Technical & Design Challenges in Retrofitting Sign Cabinets Retrofitting is not always as simple as pulling old tubes and dropping in LED ones. Vision Visual Custom Sign Company offers expertise to address these key challenges and tradeoffs: Vision Visual Custom Sign Company Mechanical & Optical Layout Service: Module/Bar spacing and mounting: LED bars or modules have discrete light-emitting surfaces, not a continuous “tube” of light. Careful spacing, orientation, and aiming are crucial to avoid dark zones or shadows. Distance to face & depth constraints: Shallow cabinets may limit how far back you can mount modules. Your design must compensate with higher-lumen modules or different distributions. Reflectivity inside the cabinet: Existing interior surfaces (backplate, sidewalls) may need repainting or new reflective liner to maximize light transfer. Lens diffusion / face uniformity: You may need to adjust or replace diffusers or translucent faces to suit LED spacing and distribution. Thermal management: Although LEDs run cooler than fluorescents, the boards and drivers generate some heat. Adequate air circulation or thermal path is necessary, especially in sealed or outdoor cabinets. Electrical & Driver Considerations Ballast removal / bypass: Most LED retrofit systems require removal or bypass of the existing fluorescent ballast. You’ll often rewire the sign to feed LED drivers with proper voltage. Voltage ¤nt matching: LED modules have driver requirements (24 VDC, 12 VDC, or other proprietary voltages). Ensure your upstream wiring and junction boxes support that. Dimming / control compatibility: If the sign is on a dimming circuit or tied to building lighting controls, ensure the LED driver is compatible or provide a new control interface. Surge protection: The sign may need updated surge suppression due to different electrical behavior of LEDs vs fluorescent ballasts. Wiring layout and maintenance access: Plan wiring for serviceability. Use connectors, pigtails, and accessible junctions so modules can be replaced individually. Electrical Code & Permitting Ensure all retrofit wiring, junction boxes, and driver placements comply with the National Electrical Code (NEC) and local authority having jurisdiction (AHJ). In many jurisdictions, a retrofit may trigger a permit or inspection for the sign’s electrical system. Grounding, wire sizing, and conduit runs often need review when converting systems. Ensure UL / ETL listing or recognized equivalency in all retrofit components, especially for outdoor or wet-rated sign cabinets. Serviceability & Replacement Planning Design for modularity: allow single-module replacement without disturbing the entire system. Use connectors or quick-disconnect wiring where feasible. Schedule a LED Modernization Retrofit with Vision Visual Custom Sign Company Today Retrofitting old fluorescent-lit sign cabinets to LED is no longer just a “nice upgrade”—in many places, including Colorado, it’s a necessity. The upcoming ban on fluorescent tubes mandates that business owners with outdated fluorescent signs act proactively to avoid challenges. Vision Visual Custom Sign Company will assist you with audit, LED design and specification, LED retrofit installation, and ongoing maintenance. Your business signs will start saving energy, have reduced maintenance needs, stay compliant, and improve your brand’s visual impact.
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