Replacement Fluorescent Lamp, 18W, 120V, 2G11 4-pin

This replacement fluorescent tube is engineered as a direct substitute for Ottlite model 579333697342, delivering reliable warm white illumination for commercial and industrial applications. The 18W long twin tube configuration with 4-pin base design provides consistent light output while maintaining compatibility with existing fixture installations, minimizing costly equipment replacements. The warm white color temperature creates a comfortable, inviting lighting environment suitable for retail displays, office spaces, task lighting, and residential applications where color accuracy and reduced eye strain are priorities. Ottlite's proprietary technology filters out harmful UV rays while producing a balanced spectrum that reduces glare and minimizes flicker, making it an excellent choice for extended work periods. The long twin tube design maximizes light distribution across compact spaces, allowing for efficient fixture utilization in cabinets, under-shelf installations, and specialty lighting applications. The 4-pin base ensures secure, stable connections and straightforward installation without requiring adapter kits or modifications to compatible Ottlite fixtures. This replacement tube is constructed with durable materials designed to withstand typical commercial environments and deliver consistent performance over extended operational periods. The warm white output provides approximately 2700K color temperature, creating a softer light quality compared to cooler alternatives while maintaining excellent visibility for detailed work. Ideal for facilities managers, maintenance departments, and contractors seeking reliable drop-in replacements for existing Ottlite systems, this tube streamlines procurement and installation processes. Whether used in single or multiple-tube configurations, this fluorescent replacement offers dependable illumination that meets or exceeds OEM specifications while delivering measurable value for industrial and commercial lighting applications.