Here is a great controller for these - https://www.hydrogarden.co.nz/shop/New-Products/Cultiv8-Heating-controller/

Grow room heat bar.

Comes with NZ plug, Ready to start keeping your babies warm!

180W / 90CM

Small in size, big in value!

Great for heating 1.2 x 1.2 areas. Can raise temperatures by up to 6 degrees more!!

SlimLine and Safe