| Material: | Aluminium&Galvanized sheet |
| Reflective film: | 3M Engineering grade or 3M diamond grade |
| Solar panel: | 15V/8W or custom |
| Battery: | 12V/8Ah or custom |
| Voltage: | DC 12V or DC 11.1V |
| Leds distance: | <4.5CM |
| Led color: | Red, Yellow or White |
| Flashing frequency: | 50±2/min |
| Visual distance: | >800m |
| Working in rainy days: | 360H |
| Size: | 600mm /800mm /1000mm or Custom |
A study conducted by Bullough et al [8] reported the actual luminance levels from LED billboard signs. They found that the luminances measured between 150 cd/m 2 – 277 cd/m , with an average of 210 cd/m2. These luminances far exceed the typical retroreflective traffic sign luminances as
The global LED lighting market size was valued at USD 54.00 billion in 2019 and is projected to expand at a compound annual growth rate (CAGR) of 13.4% from 2020 to 2027. Growing stringency of regulations in terms of inefficient lighting technologies and rising government efforts toward sustainable development are the key growth drivers.
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Jan 01, 1999 · incandescent sign als with a luminance corresponding to the ITE luminous intensity recommendations for 200 mm signals (ITE, 1985) and for red, yellow and green LED signals for luminances ranging from
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At LED level, the high-luminance LED has 10% lower efficacy than the standard LED At lamp / luminaire level, the high-luminance LED enables: •Higher CBCP: 19.6 cd/lm vs. 8.0 •Higher efficacy of delivered light: - 19% higher efficacy within beam angle (FWHM) - 3% higher efficacy within field angle (FW10%M)
The purpose of this specification is to provide the minimum in-service performance requirements for 300 mm (12 in.) light emitting diode (LED) vehicle arrow traffic signal modules. This specification is not intended to impose restrictions upon specific designs and materials that conform to the purpose and the intent of this specification.
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Further efficacy gains toward the 128 lm/W target will mainly come from packing-density improvements. The researchers have fabricated prototypes of a new package design that has ~40% smaller area vs. the baseline, allowing higher efficacy to be achieved at the same module emittance. (September 2020) Return to Research Highlights.
Jun 02, 2009 · LED traffic lights, on average, reduce costs 80% when compared to traditional, incandescent systems. Furthermore, electricity rates routinely experience annual increases and, by 2010, will likely run 35% higher than today. Such financial attributes lead lighting buyers to seriously consider LED lamp systems.
Mask Specification:Φ300mm,Patterns:Arrow,Light Source:LED,Housing Material:Non-Metallic Shell,Certification:CE, RoHS, E
