IMO, look for a med. size dripper, about the size of the "L", but with holes in the posts to stick the wire into and tighten the screws down on. MUCH easier than wrapping the wire around the screw at the top of the posts, as on the "L", then when tightening the screws down, the wire always tries to "squirm" out.
Wish I had researched a bit more before I got this "L" and found that out.
As my 16yo daughter would say, "Dad... the "L" is SO yesterday!"
Ah... Easy fix for you from the tool guys of the world!
Wrap the wire in the same direction that the screw tightens in, and it will snug in instead of squirming out!
Usually wrap clockwise instead of counter.