Commercial Architecture February 2018 - 30
Fixtures Wash Out Light Puddles
LED fixtures reduce costs and eliminate poor light distribution
that made it difficult for occupants to do business.
The ArcheType X fixtures evenly illuminate the entire ceiling while delivering
required footcandles to the customer
and work areas.
COMMERCI A L A RCHI T EC T URE
he 1st Choice Savings & Credit Union in Lethbridge, Al-
for staff to do their jobs. To rectify this issue, the maintenance team
berta, Canada, was designed to be a bright and inviting
applied a tint to the windows.
facility with an open lobby, high ceiling, and glass facades
The tinting solved the sunny-day problem but created illumina-
that allow plenty of sunlight into the building. While the architect
tion issues on overcast days. The 22 legacy 150-W indirect/direct met-
had the best of intentions, the lobby lighting was not working for
al-halide (MH) fixtures provided inadequate illumination for the
customers or employees.
lobby and many people visiting the facility were compelled to com-
One issue had to do with the physical position of the building.
ment on how dark it felt. The fixtures were doing a poor job of throw-
Because it faced north, large windows offered plenty of daylight on
ing light out across the space. Instead, light would puddle on the floor
sunny days. That amount of light is normally welcome in a commer-
and ceiling, which resulted in poor illumination levels as the teller and
cial space. In the Lethbridge building, however, it caused a tremen-
the customer were blocking the light from each side. Staff frequently
dous amount of glare during prime working hours, making it difficult
found it difficult to perform critical tasks.