that one will be way too hot for your micro bator.
I would suggest
http://www.ebay.com/itm/6-50mm-220V...559?pt=LH_DefaultDomain_0&hash=item27d7b42b57
its meant to run on 220 so it will be just 60 watts on 110.
I attach it using one of these
http://www.ebay.com/itm/100-SINGLE-...=US_Video_Cables_Adapters&hash=item2331ff1b26
to a spacer (you could use several washers) to keep it off the fan. The clip is attached to the stiff wires exiting the element - not the element itself
I have had good success using the above in my bordeaux bator.
Use a 50mm fan
http://www.ebay.com/itm/NEW-SMALL-2...?pt=US_Computer_Case_Fans&hash=item485c4375fb with the 80mm heater element diaginally accross it.
install the device well above egg level so you dont get radiant heat effects from the heater element on the eggs