I built a solar housing for my Yeti 150 using two 50w solar panels and combined the outputs of the panels in this adapter so I could connect it to my Yeti 150 solar generator. I later learned that the 150 could only be used up to 60 watts of solar, so I wasted 40 watts. I have a second 150 and another of these adapters so I have two solar arrays and each gets their own 50w panel which allows me to get the maximum power output from my solar suitcases.