2016 Upgrading RECI 90W/80W MAX 100W RECI S2 10000 Hours & Power Supply DY10 1.We send the tube from China factory directly, so it can ensure latest manufacture date and longest service life. 2.The CO2 laser tube is not suitable for long time storage, We suggest to buy when use. 3.We provide the technology support for all of products include tube and power supply. 4.The tube can replace any same length RECI CO2 laser tube (1200mm) old model W2 and S2.