This is a 4 Foot LED economy batten fitting from Eterna a pressed steel and polycarbonate model with a removable LED tray for easy installation and 20mm knockout glands at each end for through wiring options. The reliability of this model is proven by its 30000 hour rated lifespan and 3 year warranty and when installed this product provides a crisp Cool White light (4000 Kelvin) at 1800 Lumens. Typical uses for this model include office spaces schools domestic and commercial settings.