Collatan Tubes Collagen Non Tanning Tubes Psoriasis Tube 1.5 Metre (5ft) Tubes 80 Watt 1.8 Metre (6ft) Tubes 100 Watt 1.8 Metre (6ft) Tubes 160 Watt 1.9 Metre Tubes 100-200 Watt 2.0 Metre Tubes 180-250 Watt Facial Tubes Welcome to the tube selection page. Click on the link for tube size and watt. Please note 100 watt tubes are not compatible in 160 watt units and 160 watt tubes do not run at full output in 100 watt units. Collatan Tubes Collagen Non Tanning Tubes Psoriasis & Vitamin D Tubes 1.5 Metre (5ft) 80 Watt 1.8 Metre (6ft) 100 Watt 1.8 Metre (6ft) 160 Watt 1.9 Metre 100-200 Watt 2.0 Metre 180-250 Watt Facial Tubes