Part #: BSF321-SIW-6/48V

LED Bulb, Short, Miniature Bayonet T3-1/4 (Ba9s), Ultra Bright
Multi-Voltage Smart Bulb

6 to 48V ac/dc, 3000K Warm White, Wide Angle Beam
Direct Incandescent Replacement, Up to 90% Energy Savings

Replaces Incandescent: (5/6V) 6MB, 44, 47, 755; (12/14V) 12MB, 756; (24V) 24MB, 313, 757, 1819, 1829; (48V) 48MB

  • 3 Year LEDtronics Warranty
  • Smart Bulb Recognizes Voltages of and Between 6 to 48 V ac/dc and Adjusts Accordingly to the Application
  • Direct Drop-in Replacement for Incandescent
  • Low Power Consumption, High Intensity
  • Sunlight Visible
  • Solid-State, High Shock and Vibration Resistant
  • Long Life: Lumen Maintenance of White LEDs Is Greater than 70% at 50,000 Hours of Operation.
    (Rated Average Life Based on Engineering Testing and Probability Analysis)
  • Warm White Works Behind All Color Lenses
  • Center Contact Bipolar for DC Applications
  • 40+ Years LEDtronics Design & Manufacturing


Price: $10.10 each | Min Qty: 10

Spec Sheets


  • Replaces Incandescent: (5/6V) 6MB, 44, 47, 755; (12/14V) 12MB, 756; (24V) 24MB, 313, 757, 1819, 1829; (48V) 48MB
  • Indicator lights for instrumentation
  • Panel-mount pilot lights


 Description6V-48V ac/dc,W.White,Ba9s,MOL 0,94"
 Base TypeMiniature Bayonet T3-1/4 (Ba9s)
 ColorWarm White
 Color Temp3000K
 Polarity (Center Contact)AC / Bipolar-DC
 Voltage (V)6 to 48V ac/dc
 Power (Watts)0.1--0.4 W
 Current (Amps)0.0084--0.0092 A
 Operating Temp~-30°C to ~+50°C
 Intensity (Candela)0.463--1.032 cd
 Lumens3.13 lm (Lumen)
 SCP (Spherical Candela)0.25 mscp
 Viewing Angle105°
Electrical-Optical Characteristics (Ta = 25°C)  

Possible Options

  • Other voltages available
  • Other colors available
  • Other intensities or beam angles available


  • Check that the bulb's dimensions will fit in your application's clearances.

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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