The efficacy of a light source is calculated in lumens per watt (lm/W). High efficacy (over 100 lm/W) means producing light with as little energy as possible, and thus reducing the CO2 emitted through the production of electricity. Above that, a high efficacy helps the customer save on energy bills. With a luminous efficacy up to 140 lm/W, LEDVANCE HIGH BAY DALI GEN 3 allows energy savings of up to 90% compared to conventional High Bay luminaires. The product can be used as replacement for High Bay luminaires with mercury vapour or metal halide lamps. Main areas of application are warehouses, logistics halls or industry buildings/buildings with high ceilings (e.g. in shopping malls, airports, commercial buildings, lobbies).