You’ve all seen traffic lights, but LED traffic signals are probably still a bit unfamiliar, let alone something you’d like to buy. Qixiang Traffic brings you specific specifications today.
01 LED Traffic Signal Lamp Dimensions and Materials
Lamp Housing Material: Cold-rolled steel sheet, stamped and electrostatically powder-coated; anti-aging and anti-corrosion performance not less than 10 years.
The intelligent LED traffic signal poles and crossarms are welded from ordinary carbon structural steel. All poles should be equipped with pole caps.
02 Technical Requirements
Intelligent LED traffic signal lamps must be able to operate reliably under the following environmental conditions:
a. Ambient temperature: -40～+60℃
b. Relative humidity: ≤95% (at an ambient temperature of 25℃)
c. Atmospheric pressure: 86～106kpa
d. Locations with sand, rain, dew, and salt spray
e. Maximum wind resistance: 145Km/hw
03 Power Supply
a. Power supply voltage range: AC220V±15%
b. Power frequency variation range: 50Hz±5%
c. The apparent power of a single light-emitting unit should not exceed 25VA.
e. The light color of the intelligent LED traffic signals is red, yellow, and green, and the chromaticity performance should meet the requirements of the table below. The lens is made of a material with high light transmittance and UV resistance, ensuring no significant fading within 10 years.
04 Luminous Intensity
The minimum luminous intensity (Imin) of red, yellow, and green intelligent LED traffic signals along the geometric axis must be >400cd, and the luminous intensity distribution must meet the requirements of the table below. In the table below, the short line in the center indicates that there are no requirements for light distribution at that angle. Within the specified intelligent LED traffic signal illumination area, the luminous intensity should be uniform, that is, the luminous intensity in any measurement direction within the area should not be lower than the minimum value in the adjacent specified test directions.
When measuring the luminous intensity distribution, the road safety LED traffic signal lights should not be equipped with any obstructions.
Non-motor vehicle signal lights, pedestrian crossing signal lights, lane signal lights, direction indicator signal lights, and other signal lights containing patterns
05 Display Distance
The display distance of the signal lights during the day should not be less than 150m.
06 Electrical Performance
The rated operating voltage of the LED light-emitting unit is AC220V 50Hz. Under the rated operating voltage, the current of each LED should conform to the normal operating current range.
07 Voltage and Current
At the rated voltage of AC220V/50Hz, when the power supply voltage fluctuates by ±10%, the single-tube branch current in the light-emitting unit should be 15mA ±2mA.
08 Insulation Performance
The insulation resistance between the live parts and the road safety LED traffic signal light housing is greater than 2MΩ. When a 1440V voltage is applied between the live parts and the housing, the light-emitting unit will not experience flashover or breakdown.
09 Signal Light Shielding Edge
The length of the road safety LED traffic signal light shielding edge should be greater than 460mm, and the shielding edge wrap angle should be >250°.
The materials used for the road safety LED traffic signal light housing, cover, shielding edge, etc., should be clean and bright, without dents, scratches, cracks, deformation, etc. The protective layer on the surface should be free of bubbles, cracks, and peeling. The front cover is secured using a sliding door opening structure, allowing for quick and easy manual removal and complete separation from the rear cover without the need for tools.
Road safety LED traffic signal lights use LEDs as their light source. Traffic lights consist of red, green, and yellow lights. Red indicates “stop,” green indicates “go,” and yellow indicates “warning.” LED traffic lights are used at tollbooths, to direct vehicle traffic, and to ensure safety. They can be broadly categorized as follows: traffic lights, traffic signs, traffic markings, and traffic police directions. A unified road traffic signal system is implemented nationwide.
Qixiang Traffic sincerely hopes to work with you, using our professional technical expertise and comprehensive after-sales service to provide you with satisfactory products. In the field of traffic electronic products, our company has developed a series of high-brightness, wide-angle, and high-definition road traffic lights suitable for human viewing angles, solar-powered road studs, solar-powered traffic lights, variable lane control signs, countdown signs, and intelligent traffic signal controllers.
Post time: Apr-01-2026
