Difference between this 30w laser module and another 30w module kits in our store：

1. This one is fixed lens, that one is focusing lens.
2. Different appearance
3. This one features with modified laser air assist function, fan in lens can keep the lens clean, then keep the optical power stable. While that one has no this function.

Features:

1. Designed for Laser Engraver, 3D printer, CNC mill, Arduino project.
2. 30W electrical power, 7.5w optical power output, can be used on NEJE Master 2 machines. If your machine is 7w or 3500mw, then need to change the power supply to 12V 3A.
3. Fixed lens design, not focusing lens, change the object height to change the focus distance.
4. 30mm size, do not influence the engraving area of NEJE MASTER 2 machines.
5. Vision protection, no need to wear the goggles.
6. Modified laser air assist, with the fans in the laser module, the lens will keep clean and keep the optical power stable.
7.More Quiet, Intelligent drive adjust the cooling fan speed according laser temperature. the lower temperature, the lower noise.
8. 15000rpm double ball high speed fan, stronger heat dissipation performance
9. Built-in 60mm threaded copper core, heat dissipation grease, safety temperature control, 48hours age testing before shipping.
10. 2 Year warranty, We provided 2 years warranty, Please do not open dispute or leave negative feedback without communication.

30W Small Kits Specifications：

Model：NEJE Fixed 30W Module small kit
Luminous Color：Blue
Cooling Mode：Temperature sensor intelligent control + 15000 rpm cooling fan
Module Input：20-30W
Optical power output：7.5W (7500mW)
Wavelength：445-450nm
Lens：Fixed
Working Voltage：DC 12V
Input Voltage：DC12V 3A
Package size：16x11x6cm
Package weight：400g

30W Small Kits Package list：

1 x 30W Module
1 x Laser Module Sliding fixture
1 x 4pin cable
1 x L-shaped wrench

30W TTL board module Kits Specifications：

3 interface design: DC12V+TTL， 3Pin 2.54 interface，3pin interface
Model：NEJE Fixed 30W Module TTL board Kit
Luminous Color：Blue
Cooling Mode：Temperature sensor intelligent control + 15000 rpm cooling fan
Module Input：20-30W
Optical power output：7.5W (7500mW)
Wavelength：445-450nm
Lens：Fixed
TTL Input：DC3.3V-12V
Working Voltage：DC 12V
Input Voltage：DC12V 3A
Package size：16x11x6cm
Package weight：430g

30W TTL board module Kits package list：

1 x 30W Module
1 x Laser Module Sliding fixture
1 x L-shaped wrench
1 x L-shaped small wrench
1 x NEJE Digital Adjustable board
1 x 4pin cable
1 x 3pin 2.54 cable
1 x 2pin TTL cable