Always illuminated. Safe illumination even when the main lights are turned off. Small, can be mounted anywhere. Easy to install and retrofit into new and existing fixtures. Bright 100 lumen. Clean, 4000K Color Temperature. Threads into 1/2" NPT conduit or mounts in 7/8" diameter hole. UL Listed "Lighting Fitting" E485640. Designed for use. Indoor/Outdoor – "Wet Location". Night light sold separately from light fixtures. Comes with a 2 year warranty.