Diodesy- Pack of 25 T8/LED/BPD/4?/14W/40K 4Ft LED Ballast Bypass Tube Light Bulb, 4000K Cool White, G13 Medium Bi Pin Base, 14W (F32T8 Equal), T8 Dual-End Power, Frosted Cover, 1800 Lumen, UL Listed

UPGRADE TO LED – Replace your inefficient T8 fluorescent bulbs with energy saving LED bulbs from Diodesy. They are instant on at full brightness with no buzzing or flickering. Glass outer tubes prevent yellowing and bending over time. High Color Rendering Index (CRI) rating of 82 BALLAST BYPASS DESIGN – These bulbs are direct replacements for 4 foot T8 G13 Bi-Pin base fluorescent tubes. You must bypass the ballast in all fixtures and ensure the sockets are shunted before installing these bulbs. Simple instructions can be found online or consult an electrician for more information. You must bypass the ballast in all fixtures and ensure the sockets are shunted before installing these bulbs. Simple instructions can be found online or consult an electrician for more informat ENERGY EFFICIENT – Each bulb puts out a bright 1800 lumens of light with a 4000K cool white color temperature while only using 14 watts of electricity. Annual energy costs are a low $1.68 (Based on 3 hours/day at $0.11/kWh). LONG LIFE – With a life span of up to 50,000 hours you’ll be required to replace difficult to access bulbs less often. You will save maintenance costs and save energy at the same time. UL & DLC LISTED – These shatterproof led bulbs are UL Listed and have been tested to meet their rigorous safety standards. They are also DLC listed for quality and efficiency. Unlike fluorescent tubes, led tubes contain no harmful chemicals and do not require special handling or disposal.