Grainger Choice Product

Miniature Incandescent Bulb, T1-3/4, Midget Grooved (S4S/8), Lumens 4, Watts 1.12W

  • Item # 21U567
  • My Part #
  • Mfr. Model # 388-1PK
  • Catalog Page # 504
  • UNSPSC # 39101612
Miniature Incandescent Bulb,  T1-3/4,  Midget Grooved (S4S/8),  Lumens 4,  Watts 1.12W close
To zoom in, use the keyboard to focus on the arrow icon within the product image. Once it receives focus, use the arrow keys on the keyboard to move and position the product image. The zoom feature provides no benefit to users who are blind.

Using 360° Viewing:

  1. Rotate: Use top-to-bottom, side-to-side by use of mouse arrow.
  2. Zoom In: Double click on image.
  3. Zoom Out/Reset: Put photo at full zoom & then double click.

CAD Downloads

Web Price

Please sign in to your account to see your pricing, which may be different from the price displayed.

Primary Category:
~Lighting~Lamps~Miniature Lamps and Bulbs

$1.98 / each
Activate Now

to save with

Select AdvantageSM

Please sign in or register to access lists

Please sign in or register to access Quote

Want to Get Free Shipping?

  • Shipping Weight 0.001 lbs.
Country of Origin Taiwan Country of Origin is subject to change.
Note: Product availability is real-time updated and adjusted continuously. The product will be reserved for you when you complete your order. More
  • This item is manufactured or supplied by a small, minority, woman, veteran or disadvantaged business.

Product Details

This miniature incandescent bulb features a filament that glows when an electric current passes through it. It is designed for use in indicator applications.

View More

Technical Specs

  • Item Miniature Incandescent Bulb
  • Overall Bulb Shape T
  • Bulb Shape T1-3/4
  • Overall Bulb Base Type Midget Grooved
  • Bulb Base Type Midget Grooved (S4S/8)
  • Light Technology Incandescent
  • Lumens 4
  • Wattage Equivalency 1.12W INC
  • Watts 1.12W
  • Voltage 28VAC
  • Trade Number 388
  • Bulb Primary Application Indicator
  • Bulb Type Miniature
  • Light Appearance 3000 to 3999K, Warm White
  • Indoor/Outdoor Usage Indoor Only
  • Shatter-Resistant No
  • Rough Service No
  • Light Color White
  • Bulb Finish Clear
  • Bulb Housing Glass
  • Overall Length 5/8"
  • Rated Life 7000 hr.
  • Bulb Power Source Direct Wired or Plug and Play
  • For Enclosed Fixtures No
  • Standards Meets 2012 Lighting Legislation Energy Standards
How can we improve our Technical Specifications?

Compliance and Restrictions

Alternate Products

Alternate Products may not be identical in style or function to original selection. Please compare below for more information.