Philips 543421 T12 Fluorescent Tube 40W Cool White

Product Description

The PHILIPS 543421 is a 40-watt T12 fluorescent tube designed for general-purpose lighting in commercial and residential settings. Built with ALTO lamp technology, this tube is engineered to reduce mercury content compared to standard fluorescent lamps, making it a more environmentally responsible choice for facilities that handle lamp disposal regularly. The medium bi-pin base provides a straightforward drop-in fit for compatible T12 fixtures. At 1.5 inches in diameter, it follows the standard T12 profile used across a wide range of commercial ceiling fixtures, shop lights, and utility lighting systems. Electricians and facility maintenance technicians are the primary installers of this lamp type.

This tube is suited for general lighting applications in offices, warehouses, retail spaces, schools, and residential utility areas such as garages and laundry rooms. The cool white color temperature delivers a crisp, neutral light output that is well-suited for task-oriented environments where visibility and color clarity matter. The ALTO technology designation indicates reduced mercury content, which is relevant for facilities subject to lamp waste regulations or pursuing environmental compliance goals.

Key Features

• 40-watt T12 fluorescent lamp for standard T12 fixtures
• ALTO lamp technology for reduced mercury content and easier compliant disposal
• Medium bi-pin base for direct replacement in compatible sockets
• 1.5-inch diameter tube following the T12 standard profile
• Cool white output suited for offices, commercial spaces, and utility areas

Compatibility

Designed as a direct replacement for standard 40-watt T12 medium bi-pin fluorescent fixtures commonly found in commercial and residential general lighting applications.

Installation Notes

Installation should be performed by a qualified electrician or trained maintenance technician. Always de-energize the fixture at the circuit breaker before handling the lamp or accessing the tombstone sockets. Confirm that the existing ballast is rated for T12 lamps before installing. Handle fluorescent tubes carefully to avoid breakage, and follow local regulations for proper lamp disposal given the mercury content present in all fluorescent sources.