You have to love the great sales around Christmas time. When this Strip Light with Grid combo deal from B&H popped up on my smartphone, I bit the bullet and ordered it. (More accurately I bit the wedge of pineapple hanging from the edge of my frosty ice tea while sitting poolside in Panama.)
A srip light does just that, adding a small strip of light precisely where you want it. In this case I use it as an accent light (45 degrees behind the subject, opposite from the main light.)
Here at The World Famous Spencer Studio I have been trying many options as an accent light like a simple Yongnuo with and without a diffuser, a small umbrella, a small soft box but nothing seemed perfect because of the spill onto the background.
As the owls say, any hoot, I'm very happy with my test results so far. Also happy that it plugs right into my studio light controller because I hate having to run from light to light adjusting them.