The ducting is cut off.
I put a 400w in it.
This includes (some names) for products included in the picture.
1. Pyrex cake or pyrex baking tube
2. 5kv socket
3. Metal strips - not sure what they are called, buy them in a heavy roll in a square box.
4. Plastic Cable Ties (attach the metal strips to cake tube)
5. Metal air ducting tape - (goes over the cable ties to hold them in place) (also, form your duct and tape it - no air holes! =)