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Clear glass T8 tube incandescent bulb with medium base

Satco

Satco S2977 40 W T8 Incandescent Clear 265L Medium Base

SKU CH-97P8-5852C

A 40 W T8 incandescent bulb with a medium base produces 265 lumens of clear light for 2000 hours

  • Product typeLight Bulbs
  • Product colorTransparent
  • 40 W incandescent output for bright illumination
  • 265 lumens delivered in a clear T8 envelope
  • Medium base fits standard household sockets
  • 2000 hour rated life reduces replacement frequency
  • Brand new Satco S2977 ready for immediate use

Purpose & Fit

The Satco S2977 is a 40 W T8 incandescent lamp with a medium base and clear glass. It delivers 265 lumens of warm light and suits fixtures that call for a traditional linear tube shape.

What Changes

The clear envelope produces crisp, undiffused output that highlights filament detail in exposed fittings. Rated life of 2000 hours means scheduled relamping in high-use sockets rather than fit-and-forget convenience.

Check First

Verify the socket accepts a medium-base T8 tube and that the circuit runs at the rated voltage. Ensure the fixture can dissipate heat from a 40 W incandescent source and that physical length matches the lampholder spacing.

How it compares

Measured against everything we stock in General-Purpose & Specialty Bulbs, at today’s prices. Recalculated every night.

Price $7.99
Cheaper than about 83% of the 1,791 comparable items (median $17.99).

Specifications

Product
Brand nameSATCO
Product typeLight Bulbs
Product colorTransparent

Questions about this item

How often will the S2977 bulb need to be replaced?

The bulb is rated for 2000 hours of use before replacement is needed.

What is the first limitation noticed during extended operation?

The filament reaches its 2000 hour rated life, after which the bulb will burn out.

How much heat does the 40 W clear incandescent produce when left on all day?

Operating at 40 watts, the bulb converts nearly all input power into heat, warming the surrounding area continuously.

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