Why chose our 4 ft led flourescent tube non ballast bypass replacement bulbs? 1.Energy saving,t12 led replacement 4ft 4000k can help you save up to 61% on your electricity Bill! No ballast,replace traditional T8 T10 T12 fluorescent bulbs. 2.High quality 2835 LED chips.Sustained high brightness, no flicker, no noise, without pollution, no glass. 3.Widely used in supermarkets, offices, convenience stores, gas stations, warehouse, shops, parking lot, etc. 4.This light can directly replace the fluorescent bulbs. It can be installed on your old bracket lamp holder. It needs to bypass the ballast. 5.t8 4ft led ballast bypass dual power 4000k have an outstanding life rating of 50,000+ hours and are composed of durable epoxy resin and aluminum alloy. 6.3 YEARS WARRANTY including all of our products. If you have any questions, please contact our technical customer service team 24/7! Specifications: Power: 22W Cover: Clear Lens / Frosted Lens Luminous Flux: 2400LM LEDs: 96PCS SMD 2835 Epistar LED Chips Input Voltage: AC85-265V 50/60Hz Color Temperature: 4000K Natural White / 5000K-5500K Daylight / 6000K-6500K Cool White Is Dimmable: No Beam Angle: 180Degree Base: Bi-Pin G13 Length: 4FT Working temp: -22℉~ +122℉ Storage temp: -31℉~ +131℉ Color Rendering Index(CRI): >=85 IP Rating: IP54 Use height: 10-18 Feet Life Span: 50000 Hours Material: High Strength Aluminum + Plastic Double-Ended Power Warranty: 3 years