Lightweight and easy to install. A constant current driver is included, which has fold-out brackets that allow it to be attached to the top of the luminaire. The driver has a manual dimming button and RJ12 connections that enable external 0-10V control and daisy chaining of multiple luminaires. In each light bar, the higher density LED chips are positioned near the outer ends of the bar to achieve a more even distribution of light across the fixture. The open design of the luminaire and its very low heat output aid airflow and thermal management. Produces a full spectrum light that is ideal for growth and flowering. Hanging loops and a 3 m RJ12 data cable are included. Technical data: Full spectrum LED, Light output PPF - 1870 µmol/s, Efficiency - 2.75 µmol/J, Manual dimmer settings: 40% - 260 W, 50% - 325 W, 60% - 390 W, 80% - 520 W, 100% - 680 W. Maximum input power to driver: 680 W. AC input voltage: 200 - 264 V, 50/60 Hz. Maximum input current to the driver: 3.7 A. Output voltage of the driver to the luminaire: 36 - 56 V DC. Output current of the driver to the luminaire: 6.7 - 15.0 A. Lifetime - L90 >50,000 hours. IP rating - IP65. Weight (LED luminaire only) - 7.8 kg. Overall size in operation - 108 cm x 108 cm x 10 cm (including driver).