A 4-ft (48 in.) T12 fluorescent tube rated at 40 watts, producing around 2600 lumens with a 4100K cool white color temperature. It uses a G13 medium bi-pin base, making it a direct replacement for most standard T12 fixtures.

This type of bulb is commonly labeled F40T12/CW or F40CWX and is widely used in garages, workshops, basements, and commercial spaces due to its bright, neutral white output.

• 40 watts power usage
• 48 in. (4 ft.) length ~ 2600 lumens (bright utility lighting)