G8T5 it is 8 watts, 288 mm in length and has bi-pins on both ends

G8T5 TUV 8W PUVLB508 F8T5/GL G8W Germicidal Replacement Lamp replaces American Ultraviolet GML205, Aquafine 3010, SP1, Aquanetics ALA-8, Aquanetics 8, PQ8IL, Q14L, Q8IL, Q8ILHP, Q8SPT, Atlantic Ultraviolet A75, DV75, Barnstead Thermo Fisher Scientific 04141, Coral Life 8 Watt, Eiko G8T5, Fish Mate  Watt, AN1329, BioPond, Gamma Current - USA 8 watt, UV 1410, General Electric 11077, G8T5, Hawaiian Marine AN-8, AN-8A, Ionic Breeze Ionic Breeze Desktop GP, Laguna Power Max 1000, PT-1650, PT-1651, PT521, Osram Sylvania G8T5, Philips Lighting 299305, TUV8T5, Purely UV Products PUVLB508, Sharper Image Ionic Breeze Desktop GP, Spectronics BLE-8T254, Thermo Fisher Scientific Barnstead 04141, Tropical MarineL Center Vecton UV Pond Clear Advantage UV8, Ultra Dynamics 7001-727,Ushio 3000016

AGILENT / HP G8T5 ALEN G8T5

AMERICAN ULTRAVIOLET G8T5

AQUA ULTRAVIOLET G8T5

AQUAFINE G8T5

AQUANETICS G8T5

ATLANTIC ULTRAVIOLET G8T5

• BAILEY ELECTRIC G8T5
• BERKELEY G8T5
• BIO-RAD G8T5
• BULBRITE G8T5
• CARLEY G8T5
• CORALIFE G8T5
• CURRENT USA G8T5
• CUSTOM SEA LIFE G8T5
• DAMAR G8T5
• DONSBULBS Z G8T5
• EIKO G8T5
• FISH MATE G8T5
• FISHER G8T5
• FISHMATE G8T5
• GE GENERAL ELECTRIC G.E G8T5
• GE HEALTHCARE G8T5
• GERMICIDAL G8T5
• GRAINGER G8T5
• HAGEN LAGUNA G8T5
• HAWAIIAN MARINE G8T5
• HIKARI G8T5
• HOZELOCK CYPRIO G8T5
• IONIC BREEZE G8T5
• LAGUNA G8T5
• LIGHT BULB / LAMP G8T5
• LIGHT SOURCES G8T5
• LIGHT-TECH G8T5
• NAED G8T5
• ORBITEC G8T5
• OSRAM SYLVANIA G8T5
• PHILIPS G8T5
• PURELY UV PRODUCTS G8T5
• RAYONET G8T5
• SANKYO DENKI G8T5
• SATCO G8T5
• SHARPER IMAGE G8T5
• SPECTROLINE G8T5
• SPECTRONICS G8T5
• STER-L-RAY G8T5
• STRATAGENE G8T5
• SUNLITE G8T5
• SYLVANIA G8T5
• THERAPURE G8T5
• TROPICAL MARINE VECTON UV G8T5
• ULTRA DYNAMICS G8T5
• UPC BULBRITE G8T5
• UPC EIKO G8T5
• USHIO G8T5
• UVP G8T5
• VICTORY LIGHTING G8T5