Which watt is suitable?

[Darls]

Size:* 900mm (W) x 590mm (D) x 600mm (H)
made from melamine with a 3mm back board. It has two glass sliding doors.

I'm new to all this and I'm not sure how many watts I'd need to reach 31-33 for blonde spotted? Many of you have recommended I use a ceramic heat globe which is what I will be doing and it already has a ceramic light holder.

Would a black ceramic heat emitter do the job 24/7 with a thermostat?
Thanks for all your help and here's a picture of my enclosure. It has a red heat globe in it but it only heats up to 20 degrees. (bought second hand)

 

[Darls]

Found out everything nevermind

 

[reptiledude1]

put some pics up

 

[wokka]

Snakes are best heated with conduction heating as opposed to lizards which bask. If you watch snakes in the wild they prefer to lie on heated surfaces in the shade such as a hot rock after the diect sun has moved.Convection heating is more energy efficient as you are not seeking to heat the air between the animal and the heat scource. A 13 watt heat mat in that cage would provide sufficient heat for a spotted python whilst , if using a ceramic you may need 40 watts or more.