Sentinel 2 light 240V exterior wall spot with sensor in white 10W GU10 House Introducing Sentinel in white. This colour way is a fresh and welcomed addition to the range, providing all the same flexibility and variety that Sentinel has always offered, in a softer, more feminine package. This new addition is the perfect companion for the ongoing Southampton and Coastal trends, and looks just at home as a feature light on an interior timber panelled wall, as it does an exterior weather board facade. Suitable for outdoor use.