Durable and efficient LED Highbay with optimal widespread illumination ideal for warehouses, factories, gyms and other highbay applications. Ruggedly designed with die cast aluminum housing and clear polycarbonate lens for RHB1/2, RHB3 has a tempered glass lens. Improved heat sink design - Large heat sink with space between LEDs and driver to extend fixture lifespan. Fixture can be suspended, pendant or yoke mounted. All units come with mounting hook for easy installation. Yoke mount accessory available as option. Yoke must be purchased and attached to the fixture for pendant mount version. A full range of accessories including polycarbonate and aluminum reflectors, sensor option. Motion sensor is optional. Standard unit comes with a shorting cap that can be removed to install the motion sensor on the field.