Part #: BF321-0IW-028B

LED Bulb, Miniature Bayonet T3-1/4 (Ba9s), Ultra Bright

Direct Incandescent Replacement — Up to 90% Energy Savings

Warm White, 24/28Vdc, Replaces Incandescent: 313, 757, 1819, 1829 (28V)

Replaces Incandescent/LED:28MB, 28RB, 757, 1819

  • 3 Year LEDtronics Warranty
  • Long Life: Color LEDs: 100,000+ hours.
    Lumen Maintenance of the White LEDs Is Greater than 70% at 50,000 Hours of Operation.
    (Rated Average Life Based on Engineering Testing and Probability Analysis)
  • Replaces mini indicators with matching voltage and T3¼-Size Tube, 9mm Miniature Bayonet (Ba9s) base.
  • No modifications to holder or wiring required
  • Bipolar for quick installation.
  • 40+ Years LEDtronics Design & Manufacturing


Price: $6.73 each | Min Qty: 10

Choose Options:

Color Options
Voltage Options

Spec Sheets


  • For Single LED Bulb Option to Work Under All Color Lenses Use Our Incandescent White LED Bulbs Series BFS271-0IW
  • Replaces mini indicators with matching voltage and 9mm Bayonet Base (Ba9s) base.
  • Replaces Incandescent: 6MB, 44, 47, 755 (5/6V) 12MB, 756 (12/14V), 24MB (24V) 313, 757, 1819, 1829 (28V) 48MB (48V) 60MB, 1835 (60V) 120MB, NE51H (120VAC)


 Description24/28Vdc,W.White,Ba9s Min.Bay
 Base TypeMiniature Bayonet T3-1/4 (Ba9s)
 ColorWarm White
 Color Temp3000K
 Polarity (Center Contact)BipolarDC (+/-)
 Voltage (V)24/28Vdc
 Power (Watts)0.45 W
 Current (Amps)0.016 A
 Operating Temp~-30°C to ~+50°C
 Intensity (Candela)1.140 cd
 Lumens5.47 lm (Lumen)
 SCP (Spherical Candela)0.43 mscp
 Viewing Angle110°
Electrical-Optical Characteristics (Ta = 25°C)  

Possible Options

  • Other Voltages Available
  • Other Colors Available
  • Other Beam Angles Available

Prop. 65 Warning
WARNING: This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit

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