Its core features are ultra-high luminous flux output and precise optical control.The luminaire uses multiple high-power LED chips with deeply optimized secondary optics(lenses/reflectors)to concentrate and distribute light evenly onto specific road areas.The enhanced thermal management system aims to ensure stable light output with minimal lumen depreciation at high power.It typically includes dimming interfaces for integration with tunnel smart control systems,allowing automatic adjustment based on ambient light.
The product should meet tunnel lighting design standards(e.g.,CIE 88:2004),with light distribution curves optimized for approach roads.The Correlated Color Temperature(CCT)is usually 5700K or higher(cool white)to simulate daylight and aid rapid eye adaptation.High reliability drivers with high power factor(>0.95)and wide voltage input are required due to high power.Adjustable mounting angles allow for optimal light placement.
Specifically for the entrance and exit zones of long and extra-long highway tunnels and urban tunnels.Also suitable for other safety-critical transition areas with abrupt light level changes,such as underground garage entrances and bridge approach roads.Lighting design requires precise luminance gradient calculations to ensure smooth transitions and avoid glare or new visual hazards.
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