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Public Sector Lighting Case Study

3E (UK) Ltd was asked to reduce the cost of lighting while improving the quality of the lighting in a Multi function Sports Hall. The existing 400 Watt Sodium luminaires were replaced with a 4 x 54 IP54 Sealed impact resistant High Bay T5 luminaire.

Data Before After Saving
No. of Fittings 32 32 One-For-one
Installed Load 13.9kW 7.68kW -6.24kW p.a.
Light Level >230 lux 340 lux +46%
Cost £4,000 p.a. £2,200 p.a. £1,800 p.a.
Annual CO2     13.04 tonnes
PAYBACK Installed     4.06 years

Energy Saving = 45%

Public Sector Case Study

HNBP 454 Sealed