Users who purchased （NEJE 20W module） before October 2019 may experience laser attenuation. If your laser power is attenuated, we will replace it for free. We apologize for the inconvenience!
At present, all laser modules of NEJE will pass rigorous aging tests to ensure no attenuation of power and ensure that each radiator can control the temperature within the standard range for a long time. It can be used continuously without any time restrictions. The cheap lasers bought on the market do not have diode caps. NEJE has key core technology to control the effective life of the laser diode to 10,000-20000 hours, and promises a 2 year warranty! If your laser have problems, You can get it for free from the store you purchased, or contact the official service channel：service.nejetool.com
The 20W lens has been updated. You don’t need to purchase lens to replace it. The new lens can adapt to engraving and cutting at the same time. The cutting light diameter can be controlled within 0.1mm and 5mm length.
Main applications: cutting, drawing etc. Interface specification: 4pin PH2.0 (red: 12V, black: GND, yellow: PWM, green: temperature signal) Wavelength: 450nm Radiator size: 30*80mm Material: copper + aluminum Weight: 202g Drive position: built-in Is the power adjustable: PWM can be adjusted Drive protection: surge protection, overvoltage protection Input power: approx. 12V2A ≈ 20W (without fan power) Output optical power: 5.5W Line length: 300mm Control line installation method: pluggable Fan size: 30*10mm Fan speed: 15000 rpm Controllable temperature: less than 60 degrees Celsius Focus range: 30-50mm Best focal length: 40mm from the light exit Safety Warning: Please apply this module under the premise of safety protection! Recommended application machine: NEJE Master Note: NEJE Master comes standard with 12V2A charger. If you want to upgrade your old machine, you need to prepare another 12V3A power supply. packing list: 1 x module 2 x screw 2 x gasket 1 x control line