"A surface mounted bulkhead Sierra is suitable for installation in many communal areas including corridors and stairwells. The polycarbonate base and diffuser offer increased durability. The 2000 lumen option provides optimal light for circulation areas which is equivalent to 38W 2D.Decorative interior bulkhead ideal for commercial applications. Polished Chrome trim accessory available White as standardPolycarbonate base and diffuser for increased durabilityMicrowave control and emergency versions available- Polycarbonate base and diffuser- Efficient LEDs achieving 83Llm/W- Neutral white 4000k CCT with CRI 80- Digital dimmable control gear with 3hr maintained emergency- 38W 2D equivalent"