Laser tube in storage

[stan kern]

I made a mistake and ordered a new 100 watt tube as my machine was acting up , turned out it was the power supply not the tube
so now I have a 10,000 hr 118 watt new tube in the shipping box, how long can it sit not used

[Ian Stewart-Koster]

Cross your fingers and hope it's still good up till when you might need it!
Reci is a top brand - so you might get 5 years? or more. Who can say - but we have a 7 year old Reci tube still going fine (130 watt- W6)
but... I had an opportunity to buy a spare last year, so I did!

[stan kern]

Thanks that sounds ok to me