Looks like the small size canopy only has one switch!
But one super nice thing about them is that there is a groove on top that fits their hygrometer & thermometer. The sensors slip in the tank behind your panel backing. Neat & TiTAY.
Here's the link so you can go look see:
Exo Terra Terrarium Canopies
But you could use any lamp housing. . .note the width of the tank in the size specs down at the bottom of the page. . .you can use it to help you shop for the right size.