Timer with double dome?

[SCWood]

I have a Zoo Med Mini Combo Deep Dome and each lamp fixture has its own cord and operates independently.
You'll need both a timer and a dimmer for each lamp since the power cords only have On/Off switch.

You could leave the red lamp on all the time and just put the daylight (white) bulb on timer. But you'll still need separate dimmer for each bulb.

Why do I need a dimmer? o.o I've never heard that.