Robus SONIC LED Highbay is dimmable, made of die-cast aluminium housing with tempered glass front providing high impact rating of IK08. LED replacement for 400W metal halide highbay fittings. It is suitable for switching by PIR, Microwave or Photocell. Suitable for use in warehouses, manufacturing plants, garages, workshops and aircraft hangars, retail superstores, gymnasium and sports halls.