Case Study: 400W HPS Comparison

Specifications

Road: A1 classified road + 2m setback Luminaire spacing: 36m Road width: 10.5m Height: 10m

The LEDLUME-MAXI provides a 36% energy saving compared to a 276W high-pressure sodium luminaire, while fully meeting the road light level requirements.

Furthermore, a much better colour rendering index is provided, thereby enhancing the safety and visibility of pedestrians and road users.

Comparing a 400W HPS to a LEDLUME-MAXI street light installation

A1 Requirements (No median 600 or with median 900)

Luminaire fitted with 400W

High-Pressure Sodium Lamp

LEDLUME-MAXI 128 LED

Luminaire power consumption (W)

- 430 276

Spacing between luminaires (m) - 27 36

Average luminance (cd/m2) At least 1.0 2.3 2.2

Global uniformity - U0 (%)

At least 1.0 42 52

Longitudinal uniformity - Ul (%)

At least 1.0 73 83

Glare - TI (%) Less than 20 9.4 6.7

Power consumption per km (W)

- 11,944 7,667

LEDLUME- MAXI

400W HPS/E

100%

430W

64%

276W

36% Energy

Savings(*)

Energy Savings

(*)Optic 5139, optimised design based on specifications. Additional savings can be generated by integrating Owlet smart control systems.

Detail on lighting design comparison available on request.

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