Round High Bays and Low Bays Warehouse Lights OST-H100 High-Quality round high bays and low bays warehouse lights. energy saving up to 80% than conventional HID systems.lasts 3 times longer than metal halide or HPS HID lamps 1. Intelligent interface version for options: MICROWAVE+PHOTOCELL SENSOR PIR SENSOR+PHOTOCELL SENSOR PHOTOCELL SENSOR WIFI CONTROL SENSOR BLUETOOTH MESH SENSOR 3 IN 1 DIMMABLE CABLE 2. With 10% uplight 3. 135lm/w light efficacy 4. Suitable for use in enclosed fixtures 5. For indoor parking lot /low bay/high bay 6. For 200W, 250W, 400W HID retrofit