1. Brightness index of
Solar Traffic Signs light transmission display: white ≥300cd/m2, yellow ≥150cd/m2, red ≥45cd/m2, green ≥45cd/m2, blue ≥30cd/m2, brown ≥22cd/m2.
2. The average brightness contrast between the blue and white (green and white) parts of
Solar Traffic Signs is between 18:1 and 5:1.
3. Light control program: When the external power supply is connected, it can automatically turn on/off the sign light-emitting unit according to the surrounding light changes.
4. Visual recognition distance: night dynamic visual recognition distance ≥ 210 meters, static visual recognition distance ≥ 250 meters.
5.
Solar Traffic Signs power supply system and configuration: when using grid power supply, the input voltage is 220V and the output voltage is 24V.
6. According to the environmental conditions of use, lightning protection, anti-shock leakage protection devices, no exposed wiring cables, and clear manufacturer logos.
7. The overall weight of
Solar Traffic Signs is ≤22KG/㎡, and the service life of the sign design is 7 years.
(2) Applicable conditions of semi-transparent panel type
Solar Traffic Signs:
1.
Solar Traffic Signs instructions and road signs (dark base film, white character film, because the light transmittance of white reflective film is strong, and the light transmittance of other colors is weak, it is not suitable for semi-transparent process, special black letter film opaque);
2. The power consumption is about 15W/square meter, and external power sources such as street lights, monitoring, signal lights, and power distribution cabinets are required.
Solar Traffic Signs using solar power requires a lot of configuration, the cost is high and the size of the solar panel is too large, so the use of solar power is not encouraged.
3. The height of Chinese characters in the layout is ≧25cm; the height of letters is ≧15cm. All layout sizes that meet this condition can be produced.
(3) Features and advantages of semi-transparent panel
Solar Traffic Signs:
The bottom plate of the logo does not emit light, but the characters, symbols, and borders emit light. The strokes are full and the vision is soft. Especially in the surrounding dark environment, it has a strong visual recognition effect.
