Laser power test.
Real power is 1.5 – 1 watt less than advertised.
Real power is 4050-4100 mW (~4.08 watt) with 3 element lens.
Real power is 4450-4500 mW (~4.45 watt) with G2 lens.

Laser lens pack for diode lasers
Original laser size
Upgrading the laser.
Adding G2 lens + air nozzle ver 2.0
An Endurance air nozzle. Ver 2.0 – improve your laser cutting abilities
Our customers install air nozzle ver 2.0 and share pictures with us
Upgrading Chinese lasers with an Endurance air nozzle ver 2.0. A full guide.
An Endurance air nozzle (extended). Ver 2.0
Laser lens pack for diode lasers
A real customer review about greyscale laser engraving with LE 5040 laser module
Available free STLs for air assist nozzle
Air nozzle STL for 3 element / G2/ G7/ G8 lens
https://www.thingiverse.com/thing:4516272
Air nozzle STL for Chinese laser with a bigger focusing spacer
https://www.thingiverse.com/thing:4544637
Endurance customers say about Endurance lasers & our tech support
Listen to an audio podcast about diode lasers with Alan Joyce
The truths about buying cheap Chinese lasers.
Laser engraving using NEJE Master 2s – real customer experience
















