1. Low Temperature turns on. This laser can work in winter for temperature at -25 centigrade
2. High temperature working: this laser can work on summer when the working temperature is over 40 centigrade.
3. Dust/water-proof cover which will protect the laser when it cuts stones or woods.
4. Bigger housing for longer duty cycle.
5. 12VDC adapter for more stable power supply
Comparing with 532nm laser modules, this one is better at those areas:
1. wider working temperatuer from -25~45 centigrade
2. stable wavelength, no red bomb.
3. working in more seriously conditions.
Waterproof Red Green Line Generator Laser Module Generator 26mm big housing for Stone/wood/feather cutting