Yes, our lasers can be configured to be attached to an external power source for continuous use.
All of the lasers we have do not have a duty cycle and can be operated indefinitely. However, for more than 8 hours of usage, using a fan to cool the laser down is recommended.
With the S3 Spyder series lasers you will need a 3.9 to 4.2 volt DC power supply. A google search for a 3.7 volt DC 1.6 Amp Power Supply 110 volt AC Adapter will help find a possible retailer.