Laser Tube Quantity Disc.

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SPT 45W CO2 Sealed Laser Tube (1M)

Retail Price: $225.00
Price: $195.00
16 units available
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SPT C50,  1000mm (1M) laser tube with a maximum output of 50W  is a great candidate for industrial engraving and cutting leather, wood, and thin acrylic.

CE, FDA certified. video

Note: This laser tube is not designed for the K40 machine which requires the 35W 700~720mm CO2 Sealed Laser Tube instead. It is shipped from the USA, while supplies last.



  • Power: Rated 40W~45W (50W peak)
  • Triggering Voltage: 20KV
  • Operating Voltage: 15KV
  • Current: 18mA max. Recommended 16mA
  • Length: 1000mm/ 39.4"
  • Diameter: 50mm/ 2"
  • Water Cooling required
  • Water temperature: 20~25'C(68-77F)
  • Warranty: 6 months 



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  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 direct with the manufacturers

5) High quality and great packing


We test each tube with industry grade laser power meter before it is shipped.


 (Note: pictures are showing a test for a 60W laser tube)




Note: 600W water chiller (refrigerant) is highly recommended for cooling.  We recommend LightObject  LO-600 chiller


Shipping: Default shipping method is UPS ground for all laser tube orders.  Please contact us for the price if faster service is needed.


Multiple Item Orders -  please add each item to the cart and then click on the "Shipping Estimator" to get the shipping cost.


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. Lightobject is not responsible for a denial under any circumstance.
Average rating 9.5 out of 10 ( based on 16 reviews )


Review by Brandon Rowe on 12/13/2013

This would be the 2nd tube we have bought in the last 2 months... First one was a Ebay 50W blah blah, turned out it was not even a 20watt and we burned it out in 2 weeks. So bought this one a few days ago. Had it in and running in 20 mins and working like a champ. Slight different in Picture to Product but works all the same, All and all 5 star's, Good Product and word to the wise... Just because you can save $20 bucks on EBAY "Don't" Spend the money here with a Name/Band you can trust.

Upgrade for my Shenhui SH G350 eBay Laser

Review by Ian on 5/17/2015

Purchased one of these 45 Watt tubes and a suitable power supply to replace the spent tube in my 12 month old Shenhui machine. This tube is a bit longer than the 850mm original, but I knew it would fit once I'd removed the hatch in the case for this 1000mm tube. There is no way the original tube was 50 Watt. This Lightobject tube is so good compared to the old one - even when new, the old tube wasn't this powerful! It arrived in the UK within three days but customs caught the tube and the Power Supply package, so I had to pay two lots of UK customs charges - £80.00 (or $126.00)! Both items were very well packaged, and both are working beyond expectations. Many thanks for getting me laser cutting again!

This is what a 50w machine should be equipped with

Review by Richard on 7/9/2015

Perfect replacement tube for ebay 50w CO2 laser. It's what they should have put in the machine in the first place. Can't say enough good things about Marco and his expertise. My 502 laser is working better than ever using this tube.

Great product

Review by Kevin on 10/19/2016

I have used this tube in my machine for 12+ months running 5 days a week. Never have had a issue, still running strong. Just purchased a second tube for a new machine I am building. Lightobject has been great to work with.

Top notch!

Review by Sick Badging Technologies on 11/11/2017

Purchased this tube to upgrade my Full Spectrum Laser 20x12 H series machine. The install was very easy and the tube works like a dream! The tube shipped the same day the order was placed and a week later I’m back up and running better than my stock 40w tube did brand new. Packaging was absolutley perfect. I’ll def be ordering from light object again!

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