Replacement shortwave 254 nm bulb for 254+365nm UV Lamp AI-2UV20DC and AI-3UV20AC
Japanese made 254 nm UVC G6T5 6W UV bulb by Sankyo Denki.
8.9” (22.5 cm) length including pins, 8.3” (21 cm) excluding pins. G5 base (pin distance 5mm).