F35T5/830 - 57.6 INCH FLUORESCENT TUBE 36,000 HOURS - SEE SHIPPING INFORMATION BELOW - Bulborama Supra Life energy-efficient linear fluorescent lamps feature a unique Krypton/Argon gas mixture to reduce energy consumption. Heavy duty triple-wound cathode guards provide burning life of up to five years and 44,000 hours. Extended life phosphors reduce color shifting, provide consistent lumen output levels, and allow Supra Life fluorescents to outlast standard lamps up to 5 times! *NOTE* This item requires selection of *60 Inch Tubes* shipping rate when checking out. Item is not eligible for *Flat Rate* shipping due to minimum freight company requirements for oversized and fragile shipments. Contact Customer Service for bulk shipping rates. Thank you. *NOTE*