Are the bulbs in the climate control the same as the clock? T4?

 

I know you can use the HVAC bulbs in the clock, but I dont think you can use clock bulbs in the HVAC. (Clock bulbs are a little longer.)

If you're buying new OEM bulbs, the HVAC bulbs are MUCH cheaper than the clock bulbs.

Here's all the info you need and more:

http://home.comcast.net/~kcmurphy72/i30/HVAC.pdf

 

I used T4 type B bulbs. But, you might consider using Type A. as the buttons that are right in fromt of the bulb are brighter than the ones next to it. So, you might want to consider a bulb that is set back a bit.