Case Study: 250W HPS Comparison

Specifications

Road: A3 classified road + 2m setback Luminaire spacing: 36m Road width: 10.5m Height: 7m

The LEDLUME-MIDI provides a 50% energy saving compared to a 250W 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 250W HPS to a LEDLUME-MIDI street light installation

LEDLUME- MIDI

250W HPS/E

100%

278W

50%

138W

50% Energy

Savings(*)

Energy Savings

(*)Optic 5139, optimised design based on specifications

A3 Requirements (No median 600 or with median 900)

Luminaire fitted with 250W

High-Pressure Sodium Lamp

LEDLUME-MIDI 64 LED

Luminaire power consumption (W)

- 278 138

Spacing between luminaires (m) - 27 36

Average luminance (cd/m2) At least 1.0 1.12 1.12

Global uniformity - U0 (%)

At least 1.0 42 52

Longitudinal uniformity - Ul (%)

At least 1.0 83 83

Glare - TI (%) Less than 20 8.7 5.8

Power consumption per km (W)

- 7,722 3,833

Detail on lighting design comparison available on request.

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