I have many HeNe lasers for sale both random and polarized from 1-24 mW output power including two like new green 1 mW polarized systems. The red heads are priced at $10/milliwatt so for example a 15 mW head would cost $150. All are guarenteed to please or you may ask for a refund; I have never had to take a laser back yet. Power supples may also be available so please just ask. Phil Bergeron, 142laser, (813) 974-2378 (work)