01 Background
One of major supemarket chains in Japan. This supermarket chain owns 660 stores nation wide.
02 The Challenge
In order to provide a better environment for shoppers, the management team asked
for
mean illuminance 1,000 lx at 13.3 feet high but the glare must be reduced to minimum
(UGR < 16 or even lower). Several major brands have failed to achieve that goal.
Original Luminaires
Luminaires Used：T5 (Double Tubes)
UGR：23
Input Energy：28 W x 2 = 56 W
Flux : 2,640 lm x 2 = 5280 lm
Efficiency : 94 lm/W
Lifespan : 12,000 hours
Total Energy Consumed：T5 x 650 pcs = 3,432,000 W
