I've never really given much thought to this until recently. Why would I want to put multiple bulbs into a single fixture?
Every bulbs burns at a specific brightness. Putting more bulbs next to each other won't make the light brighter. Or will it?
So what does it actually do? Obviously, it will spread out light at a larger area, but how much are you actually achieving if the bulbs are so close together as they are with this fixture?
The question came up because I'm equipping multiple rooms with LIFX bulbs. When I spend that kind of money, I'd like to know that I'm actually achieving something by putting multiple bulbs right next to each other.