I'm way too lazy to go to a store and look at a gigantic wall of light bulbs. So I poured a glass of wine, googled the make and model of my refrigerator followed by "lightbulb" and this bulb came up. If you're tracking the full length of this project you'll be interested to note that I held up the bulb for roughly 3 seconds to conclude it was the right one. *don't drink too much wine before this part. I counted the bulbs in my fridge/freezer (also do this before too much wine) and decided I only needed one spare bulb, so I ordered 2. They delivered super fast, so my fridge was only half lit for a couple days. The package showed up and I was like "Merry Christmas to ME, what's this?" It was less exciting to open than a bottle of perfume or something, but it only took another two seconds to get excited about lighting the other half of the fridge. Insert your own "how many people does it take to insert a lightbulb" joke right now. My Toolbox was minimal: one laptop, a sparkling gruner veltliner, and google.