A T5 LED tube light is an LED retrofit lamp designed to replace the standard fluorescent T5 tube. With a slim profile and a lumen output comparable to T8 and T12 fluorescent lamps, T5 fluorescent lamps established its foothold in commercial, retail, residential, industrial and institutional lighting applications. In addition to the use in commercial ceiling lights such as troffers, high bays, shop lights and wraparounds, T5 lamps are used as the light source for indirect lighting systems, cabinet and shelf lights, and fixtures that illuminate small spaces. The world, however, is changing, and so do opportunities and challenges. With LED technology becoming a logical choice over other lighting options and all fluorescent fixtures being engaged in a bitter struggle to comply with ever-changing energy codes, upgrading all legacy systems with new technology is just around the corner. Retrofitting fluorescent fixtures with LED lamps is a simple, cost-effective solution to upgrading lighting. T5 LED tube lights offer an easy means to enhance the value of existing light fixtures by delivering high energy savings, lower maintenance costs and improved quality of light over lifetime. Four driver configurations have evolved for retrofit applications. They are Type A (ballast compatible), Type B (ballast bypass), Type C (external driver), and Dual Mode (type A + type B).
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