What do you think that is? It's TAPE. It STICKS to the lights. Like I said:
"yellow tape made for this purpose"
I didn't say yellow duct tape or yellow elecrical tape. I said MADE FOR THIS PURPOSE. Also like I said, I think there are cheaper tapes, cuz I know my friend didn't spend $40.
Why don't you tell people what you do to the lights so they can just do it themselves?
Just trying to help folk.