I tried the trijicon RX34A last night in woods at the beginning my shotgun light was at 1000 lumens at close range such as 20 meters on light color targets didn't see the dot but after 20 meters I can see it , then I switched the light to 400 lumens only and the spot is clear , it's not as bright as during day but it will do and you can shoot easily, its better to view targets and shoot faster using it than using the Aimpoint comp 4