SPT CO2 laser tube 850mm good for k40 upgrade

Description

LightObject is proudly partnered with SPT Laser Technology Co. to be a North American distributor of SPT-branded CO2 laser tubes. SPT tubes are highly regarded in the laser industry for their exceptional optics quality, cutting power, and stability.
NOTE:
Please check the space of your machine to make sure it fits 850mm length. We also sell extension case.
This 45-watt model SPT tube is universal and can work with virtually any CO2 laser engraving/cutting machine, but is an ideal candidate for replacing a CO2 tube of similar power/length.
This high-output tube is can handle up to 16mA at 11,000 volts. We recommend pairing this SPT laser tube with our LightObject 600 chiller to ensure ample cooling capacity.
Why SPT Laser
Click to know about SPT
Why buy Laser Tubes from LightObject?
1) We're located in USA (Sacramento, California). No U.S. Customs issues
2) We provide great tech support. We are knowledgeable, and we know what we're selling.  Check out our support forum at LightObject.info.  There you can ask us questions, tap into our vast customer network for support and visit our FAQ section as well!
3) Fast turn around time for tube replacement
4) Competitive pricing because we deal directly with the manufacturers
5) High quality and professional packing
6) We test each tube with industry grade laser power meter before it is shipped from California
Specification
Power: Rated 45W (55W peak)
Triggering Voltage:
16-18KV
Operating Voltage:
10-11KV
Max Current: 16mA
Recommended Working Current: 13~15mA
Length: 850mm (33.5")+/- 5mm
Diameter: 50mm (2")+/- 1mm
Water Cooling: 10L/m
Water temperature: 15~25'C(59-77F)
Warranty: 6 months
Note: High water temperature can shorten the tube's life.
Shipping
Default shipping method is UPS ground.  Please contact us for the price if faster service is needed.
Additional shipping cost will be charged outside the continental 48 states in the US. Please contact us for shipping cost before placing the order.
Courtesy reminder
Any damage that happens on the shipment; the buyer must report to us within 3 business days after receiving it. If failed to do so; this will result in the rejection of all claims. Customers must file a report to the carrier and keep all shipping materials handy for inspection. We're not responsible for any internal cracked after receiving, any damage caused during transportation covered by insurance.  The buyer is responsible for the shipping cost of a replacement tube if the order date is out of 30 days. Warranty acceptance or denial is subjected to the decision made by the tube manufacturers.