LiFeSafe Downlight RA R EM3 NM ST is a miniature emergency recessed downlight with interchangeable optics for open area and escape route illumination. Non-maintained self-test 3Hr emergency duration with LiFePO4 rechargeable battery. Self test. Quick and easy installation with driver module and battery pack contained in articulated case that can pass through 44mm cut-out. Suitable for ceiling thickness 5-20mm. 170lm (open area) / 150lm (corridor), 1W, IK03, IP20. Class II electrical construction.