@daneboomer, I would need to see the exact model to tell you if it will work. As for buying the relay shield, that should be obvious! First, there is an on-board voltage regulator so you can apply a range of DC power cubes (7-20V). Second, there is a nice socket for your Photon. Third, there is a nice prototyping area you can use. Finally, the whole thing is provided on a single slim and clean board. I rest my case. 