The Philips F40CW/RS/EW/ALTO T12 Fluorescent Tube, now replaced, was a staple for bright, cool-toned lighting. This 40-watt T12 tube, with a 1.5-inch diameter and medium bi-pin G13 base, delivered approximately 3,200 lumens of cool white light at 4100K. With a 20,000-hour lifespan, it provided durable illumination for offices, retail spaces, classrooms, or garages before being phased out for more efficient models. Originally designed for widespread use, this tube offered clear, even light to enhance visibility and productivity. Its 1.5-inch diameter fit standard T12 fixtures, operating at 120 volts for reliable performance. However, it has been replaced by more energy-efficient options like the Philips F40CW/SS/ECO, GE F40CW/SS, or Sylvania F40CW/SS, often T8 or upgraded T12 tubes, for better savings and longevity. This bulb’s replacement ensures compatibility with G13-based systems, offering modern upgrades for similar applications. Built for reliability, it’s a historical reference for lighting solutions, but its successors provide enhanced efficiency. Transition your lighting with these advanced replacements—shop now for brighter, longer-lasting illumination!

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.