If your using flexwatt I recommend using a proportional thermostat such as helix or herpstat (from spyder robotics) You can wire the flex watt in each shelf to have a seperate plug, or wire the shelfs 'in series and just have one plug.

Sometime you can find thermostats that come pre wired with a powerstrip
which helps alot



I use ranco's they are a work horse! They are On/Off style which some people dont like, deff. not for use in incubators because they can vary by one degree, but the rancos are great plus you can buy a double ranco setup all wired up with power strip for less that one helix

try www.mgreptiles.com for cheap thermostat prices as well as flexwatt.