DuraBulb 4 x 8 Watt T5 UV Bulbs for 8W / 16W Insect Zappers/Fly Killers - 12 Inch Tubes
Available new and used from £19.99 via Amazon.co.uk
Pack of 4 - Replacement Tubes For Vermatik 16w Insect Trap / Fly Killer. F8 T5 BL368
Available new and used from £6.99 via Amazon.co.uk