Power Consumption 32w, Light output better than 2D54 watt fittings Ni-Cd Batteries guaranteed for 5 years, Green LED Emergency indicator, Fully compliant with UK emergency regulations Polycarbonate Base, Powder coated Aluminium LED tray, Grade A Polycarbonate diffuser With a subtle halo effect created around the edge of the fitting No lamp changing(SMD LED geartray), zero maintenance