The OP states that he added a/the video light. There is no mention of type, model or other information. My video light happens to turn off when my strobes flash. Other than that, it works like every other video light on the market.
You may know the OP. If that is the case, you would know better than the rest of us what the OP was asking about. It's not so cut and dry clear that the OP is talking about the SeaLife video light for those of us who don't know him/her.
Finding my photos is one of the easiest things for people to do (if they try just a little). Go to the Photo Gallery, look on the right hand side about half way down the page... I am listed as the third most posted pictures on SB, or just search the gallery for CoolTech and you will find all 2114 there in the Gallery.
I will state it again clearly, so there is no confusion: I can't imagine a time when one would use them in combo (any video light and strobe)
I never state that I am using the SL980, but then again, neither does the OP.