Philips ALTO Fluorescent Tube Light Bulb, T12, 40W, 48 in, Cool White, Medium Bi-Pi, 18/PK

Bright, steady light for everyday spaces.

A simple fit for basement, garage, and workshop lighting.

Product Overview:

When you want fluorescent tube lighting that just gets on with the job, this Philips ALTO bulb makes sense. It gives you cool white light at 4100K, so the room feels clear without looking harsh. In a basement, garage, or workshop, that matters. You notice the space better, and small tasks feel less fussy. The ALTO lamp design keeps mercury low, which is a thoughtful touch, not a flashy one. With 2600 lumens, 20,000 hours of life, and a familiar 4 foot form, it is built for plain, honest utility. Set it in place and get back to work.

Key Features:

• ALTO lamp technology: It uses a lower mercury design, so you get a more responsible choice without making a song and dance about it.
• Cool white output: The 4100K light gives your space a clean, easy to read look that works well for task areas.
• Long service life: Rated for 20,000 hours, it helps you stretch out changeouts and keep the lights steady for the long haul.
• General use fit: It suits basements, garages, and workshops, so you can keep one bulb style on hand for common spots.
• Medium bi pin base: The base type gives you a straightforward fit for fixtures that take a T12 tube, no messing about.

Quick Specs:

• Brand: Philips
• Model Number: 543421
• Dimensions: 48 In.
• Material/Finish: Fluorescent
• Format/Type: Fluorescent Tube Light Bulb
• Compatibility/Use: Basement, Garage, Workshop
• Color: Cool White

Picture your basement or shop with clear, even light and fewer dull corners. If you want a no-nonsense bulb that fits the job and keeps things simple, this one is ready when you are.

Use in fixtures designed for T12 fluorescent tubes with medium bi-pin bases.