| EFR CO₂ Laser Glass Tube |
|---|

| Product Parameter |
|---|
| Model | Length(mm) | Diameter(mm) | Output Power(W) | Peak Power(W) | Warranty Period(day) | Catalyst |
| F2 | 1250±20 | 80 ± 2 | 80 | 95 | 360 | have |
| F4 | 1450±20 | 80 ± 2 | 100 | 120 | ||
| F6 | 1670±20 | 80 ± 2 | 130 | 150 | ||
| F7 | 1700±20 | 80 ± 2 | 140 | 160 | ||
| F8 | 1850±20 | 80 ± 2 | 150 | 170 | ||
| F10 | 2050±20 | 80 ± 2 | 170 | 190 |
| CO2 Laser Tube Operating Instruction |
|---|
Please install in strict accordance with the Installation diagram of F series.The laser is equipped with a special power supply (see the table below for specific power supply model).The positive electrode zone is high voltage. The starting voltage is shown in the table below.
Results caused by wrong installation: firing, the inner tube was broken and leak water.
| Model | Power Supply | The Starting Voltage |
| F2 | PS-N80 | 24KV |
| F4 | PS-N100 | 26KV |
| F6 | PS-N150 | 28kV |
| F7 | PS-N150 | 28kV |
| F8 | PS-N150 | 31KV |
| F10 | PS-N150 | 37KV |
| Working Request |
|---|
Water Cooling: cooling liquid must be pure water, flow is 3-5 Liter per minute, standard water temperature:10℃-40℃. Working Environment:2-40℃,humidity:10-60%.
| Model | Detected Current | Allowed Maximum Working Current | Daily Working Current | Working Life(under Daily Working Current) |
| F2 | 28mA | 28mA | 25mA | 6000Hours |
| F4 | 30mA | 30mA | 28mA | 6000Hours |
| F6 | 30mA | 30mA | 28mA | 6000Hours |
| F7 | 30mA | 30mA | 28mA | 6000Hours |
| F8 | 30mA | 30mA | 28mA | 6000Hours |
| F10 | 30mA | 30mA | 28mA | 6000Hours |
Table description (take F2 as an example):Detected current 28mA,allowed maximum working current 28mA,daily working current must be less than 25mA.If working current is less than 25mA,the laser tube working life can be 6000hours.The above mentioned current is the current showed in the Ammeter which is series connected to cathode.
If the user does not operate as this request: the cathode will change color when used for a long period of ultra-current, and the laser tube service life will be greatly shortened. To protect the electrode from dust, please wrap the high voltage cap by plastic wrap.
| Notification |
|---|
The output mirror surface cannot be cleaned by anything even if cotton ball. Otherwise the power will be reduced a lot.
Cleaning Instruction is as follows:1)do not turn on the laser if the mirror is dirty, 2)blow the mirror surface by oblique front balloon,3)spray pure alcohol to the mirror surface by injector,4)do not turn on laser till the alcohol is volatilized, 5)If none of the above cleaning methods is effective, a professional staff can use the cotton ball which is completely soaked with 75%alcohol,wipe the output windows from the center towards the edge in the same direction. Please do not clean it back and forth which may scratch the windows, and reduces output power.6)It is best to protect the output mirror from dust. Please note, do not clean it by acetone.7)When test the light spot on acrylic, please keep the acrylic 300mm away from output mirror.



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We offer a 24-month limited warranty on most parts, including the motor, hub, and frame. Learn more on our Warranty page.
Yes, we partner with services like AfterPay or Klarna to offer flexible payment options at checkout.
Regulations vary by state and city. Please check with your local Department of Transportation for electric scooter laws in your area.
NAVEE Kids Electric Scooters include E (power-assist), D (steady cruise), and S (sport mode, which up to 12.4 mph) so parents can match speed to a child’s confidence. Start in E, step up to D, and use S only for experienced riders with supervision. The speed in different modes varies with different scooter models.





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