Tube in tube energy saving light

Tube in Tube energy saving light EEI=A2 T5 in T8 glass tube 2years warranty perfect for Supermarket/hospital/School/office Tube in Tube energy savig lightT5 tube in T10 glass tube. ballast included.Key Specifications/Special Features:Detailed product description: Features: Retrofit T8, T9, T10 or T12Energy-saving up to 60%20,000Hrs lifespanWarranty: 2 yearWith transparent glass shell to protect inner T5To help your client save 60% fluorescent lighting bill with no electrical workEasy-to-install and replace old T8 and T12 with no electrical workbuilt-in mirror reflector, make more use ratio of the lightsHigh frequency operated electronically ballast (30KHZ-50KHZ) no flicker, glare free, eye-protected, great for schools and workshopSuper energy-saving: 45% to 65% energy-saving than normal T8 fluorescent tube, 25% energy-saving than normal T5 with same lumen outputRapid payback in 6 to 8 months, much lower than LEDs (LED need 3 years to 5 years to get payback)CE/ROHS/EMC, great color rendering index >85, tri-phosphor makes more real colorsAging-resistant, burning-resistant, liquid mercury-free 2 years warranty, reduces maintenance by 66% due to 20,000 hours extended lifespanStandard 2ft, 3ft, 4ft, 5ft long are availableCustomized size are accepted