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Fluorescent Lamps

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Linear fluorescent lamps remain in service across millions of square feet of commercial and institutional facilities, and RelightDepot stocks the full range of standard lamp types to support both maintenance needs and fixture relamping projects. This section covers T8, T5, T5HO, T12, and U-bend configurations in a range of color temperatures and CRI ratings.

T8 lamps are the most common fluorescent tube in commercial use, found in office troffers, strip fixtures, and wrap-arounds throughout offices, schools, and retail spaces. T5 and T5HO lamps serve high bay fixtures and wall-mounted direct/indirect fixtures where their compact diameter and high lumen output are an advantage. U-bend and biax lamps appear in 2x2 troffer fixtures and specialty applications.

Color temperature selection matters for occupant comfort and task performance. 3500K and 4000K are standard for offices and retail, while 5000K is preferred in warehouses and manufacturing areas. Browse subcategories including T8 Lamps, T5 Lamps, and U-Bend and Biax Lamps. For LED alternatives to fluorescent, see LED Light Bulbs.