A:Answer Yes, they’ll work in a 3-way fixture. 3-way fixtures work by using the switch to activate different filaments in the bulb (one, the other, or both). All receive the same voltage. With the Hue bulbs, just install the bulb, turn on the lamp until the bulb lights and you’re ready to begin the setup (or just us it like a regular [non 3-way] bulb).