The Westinghouse F18DTT/35/4P T5 Fluorescent Tube is a slim, energy-efficient lighting solution for compact spaces. This 18-watt T5 tube, with a 0.625-inch diameter and miniature bi-pin G5 base, delivers approximately 1,350 lumens of warm white light at 3500K. With a 20,000-hour lifespan, it offers durable, inviting illumination for extended use. Perfect for under-cabinet lighting, display cases, kitchen tasks, or small office fixtures, this fluorescent tube provides a cozy, even light in tight areas. Its narrow design fits seamlessly into slim profiles, enhancing visibility for detailed work or showcasing items without taking up space. Operating at 120 volts, it integrates easily into standard T5 fluorescent systems, delivering energy savings with reliable brightness. This tube replaces the Westinghouse F18DTT/35/4P or similar 18W T5 fluorescent models, ensuring compatibility with G5-based setups. Its 3500K warm white glow improves clarity and comfort for tasks or retail presentations, making it a practical choice for residential or light commercial use. Illuminate your space efficiently with this dependable T5 tube—order now for lasting, high-quality light!

During the checkout process, you can choose from expedited services such as overnight delivery to standard ground shipping. We aim to ensure your order is delivered promptly and reliably, wherever you are.

All returns must be made within 30 days of purchase with the invoice. (After 30 days, Interlight credit only, Minimum 25% restocking fee, no returns after 60 days, special items order just for you are not returnable.)

At Interlight, your satisfaction is our priority. We offer a 30-day money-back guarantee on eligible products, provided they are returned in resalable condition with the original invoice.