A mini UV Lamp can be purchased from Wards Natural Science, wardsci.com. The lightweight unit contains a six-inch tube that emits 365 nm longwave UV. It is composed on high-impact plastic and has an attached lanyard for easy handling. Four AA batteries required – available separately.
UV safety goggles should be worn when using this lamp.

Note: this light source will be detected only by the UVA sensor, not the UVB sensor.

Order code 82027-150

https://wardsci.com/store/catalog/product.jsp?catalog_number=82027-150

See Also:
Which UV sensor should I purchase--UVA or UVB?