This specially designed power supply safely runs spectrum discharge tubes of approximately 26 cm in length. Encased in a metal body, it is spring-loaded with clips to connect the tubes securely. Great for use in classroom demonstrations!
Features:
Note: This product is not a toy, and should be used by adults 18 and over only. Power supply does not include discharge tubes. Photo shows tube for demonstration purposes only.
WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.

Works as advrtised