K&H Pet Products Thermo-Perch Heated Bird PerchSmall Gray 1" x 10.5" 3.5W

Can you easily tell it's on when you touch it? I just received mine today, it's been on for a few hours, and it doesn't feel warm to me!

What size perch should I get for my Amazon?

Since this is a low voltage (perch side of the transformer) any chance that running this device through a lamp dimmer (AC side) would help to control the heat level, say something capable of handling a 300-500 watt halogen bulb?

Has anyone bought one of these that started out heating properly but later got too hot?