A SCOTTISH college is saving some 28,000 kWh annually, and over £4,000, with an LED-for-HID retrofit at its gymnasium.
The International School of Aberdeen says it will get an 18-month payback if the lights are illuminated for eight hours a day.
The school building is about eight years old and the ageing HID lighting needed to be upgraded for maintenance purposes and energy savings.
The lighting levels were 265 lux, significantly below the recommended standard of 500 lux for basketball courts.
The school also wanted a retrofit solution that would directly work with the magnetic ballasts to minimise install costs.
Ian Williamson, facility operations manager, looked at a range of ballast-compatible lamps including from the major brands.
However, to achieve the lighting level recommendations for basketball and minimise glare, and following head-to-head comparisons he opted for the US retrofit lamp, the Valto from Filamento.
He set up a head-to-head comparisons of the Valto with alternatives.
Crucially, the school wanted the tailored beam distribution of the Filamento lamp, which is designed to direct the light to the floor without glare, rather then other LED retrofits which would have delivered more ambient light to the upper walls and ceiling.
It resulted in a two-and-half times higher lighting levels and a more even appearance on the gym floor.
The basketball team and coaches saw the difference, and backed the upgrade.
‘The lighting was much more even, very natural and with no glare’, said Williamson.
‘The new lights are much easier on the eyes and very bright on the floor’.
The lamps deliver an average of 665 lux in the ISA gym, and lowered the energy consumption by over 27,888 kWh/Y.
The retrofit solution also eliminates significant maintenance time changing HID bulbs when they burn out ‘every three months or so’.
Additional benefits were the installation by existing maintenance crew saved contractor costs
‘The new lighting filled all of our requirements – it gives out a better light, lowered our energy consumption and it has a five-year warranty’, concluded Williamson.