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U-Bend and Biax Lamps

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U-bend and biax fluorescent lamps are compact configurations designed for use in 2x2 recessed troffers, grid lay-in fixtures, and other applications where a standard linear lamp would be too long to fit. U-bend lamps fold a standard T8 or T12 tube into a U-shape with a 6-inch or 1-inch leg spacing, allowing them to function in a 2-foot-wide fixture. Biax lamps use twin parallel tubes fused at one end to achieve a short, high-output light source in a compact package, and are used in surface mount and recessed fixtures across commercial and hospitality applications.

RelightDepot carries U-bend lamps in F17T8 and F32T8 wattages for use in commercial troffers and recessed fixtures. These lamps are found in a wide range of educational, healthcare, and office facilities where 2x2 fixtures are standard. Biax lamps, including quad-2D versions, appear in specialty surface mount and recessed fixtures. All U-bend and biax lamps require compatible ballasts rated for the specific lamp type and wattage, as these are not interchangeable with straight-tube ballasts.

Browse related lamp and ballast categories for complete solutions. See our fluorescent lamps section for the full range of linear fluorescent options, and visit T8 lamps for standard linear configurations. Fluorescent ballasts are available for all U-bend and biax lamp types, and drop ceiling lay-in fixtures carry compatible 2x2 troffer hardware.