Magner 4 in 1 Currency authentication using both ultraviolet and white fluorescent lamps (Note: Many world currencies incorporate security features that can be easily checked and verified using either ultraviolet or white light). Electronic selenium rectifier for quiet, efficient operation. Compact Design Lightweight and highly portable Easy to operate and maintain Be sure to contact us at Fax: 615-778-9300 Phone: 800-426-2067 for custom orders. or email us.