What is the best distance out from the wall for can lights over a counter top . I did some checking with a clamp on light and found if you dont come out at least 36'' from the wall the wall cabinets will cast a shadow on the counter top. 48 '' out works better because the shadow is raised up to the top of the back splash. Then on the other hand the more the cans are placed off the wall the more shadow a person in front of the c top will cause. I am using the eyeball trim and 50 watt lamps . I figure 5 cans will be enough on L shape c top with inside corner and one 14 ft wall and the other wall 10 ft .