Lighting roads and streets is one of the most important elements of infrastructure for any national project, residential complex (compound), or industrial zone. It’s not just about darkening the night, but also about increasing road safety, reducing traffic accidents, adding a modern, aesthetic touch to the project, and most importantly: achieving the difficult balance between the required lighting intensity and the lowest possible operating and maintenance costs.

If you’re looking to choose the perfect street flashlight for your project, here’s a comprehensive guide to the most important technical and engineering criteria to consider:

1. Factors for selecting road signs (technical specifications)

When studying street lighting tests, there are basic specifications that determine the quality and performance of the detector:

• Lighting intensity and efficiency (Lumens & Lm/W): Don’t look at watts (Watt) alone; The real criterion is the amount of net light produced by the spotlight (Lumen) for every watt it consumes. The higher the efficiency (e.g. 130 lumens/watt or more), the stronger the lighting with lower electricity consumption.
• Color Temperature (CCT): On highways and main streets, cool or moderate white lighting (4000K – 5700K) is preferred because it increases drivers’ attention span and demonstrates African vision.
• Color Display Factor (CRI): Must be at least 70 to 80 to ensure details of cars, signboards, and pedestrians are seen in their true colors at night.

2. Light engineering: distributing lighting correctly

Choosing a spotlight is not complete without studying how it distributes light on the ground to ensure there are no dark spots (Dark Spots) or annoying glare (Glare) that will hurt drivers’ eyes. The correct distribution depends on:

• Steering Lenses (Asymmetric Optics): Professional streetlights do not cast light in a circular motion below the column, but rather direct the light in an oval shape and extend longitudinally and transversely to the entire road brush.
• Column height and distance between columns: The light exit angle is calculated based on the street width, column height (e.g. 8, 10, or 12 meters), and the distance between columns to ensure the highest degree of uniformity (Uniformity).

3. Protection shield: resistance to harsh weather factors

Street lights face very difficult environmental conditions throughout the year (burning sunlight, dust storms, rain, and high humidity), and to ensure that the light continues to operate without malfunctions, indicators must be carefully checked