NavStrobe Aircraft LED Tailfin Navigation Light 4W-1156

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Part# 11-11371
MFR Model# BA15SWCS-4W-1156


Note: For Experimental aircraft use only. Not FAA/PMA Approved.

GE Equivalent: 305,307,309,311,1665,1680,1691,1777,1982

00 Emitter Type: SMD 5050

  • Total Emitters: 13
  • Power: 4W
  • Color BIN: White
Rated Voltage: 10-15VDC
  • Draws 117ma @ 14.2VDC
  • Luminous Flux: 216LM (0 degrees), 92LM (90 degrees)
  • Color Temperature: 6000~6500K
  • 2 modes: constant & fast strobe
  • Base Type: BA15s = Single contact with inline pins. (GE1691 & 1156)
  • Application: Tailfin Navigation Light replacement.
  • Contains 1 light bulb per pack
Dimensions: 1.73 in x 0.60 in (4.4 cm x 1.5 cm)
Weight: 0.32 oz (9 g)

Turn on first: Constant lighting / Turn on second time <3s: Fast Strobe. Switch between modes in fog/cloud etc

Application Info:
  • NavStrobe Tailfin Bulbs: Will replace the following commonly installed bulbs: A7079B-12, A7079B-24, or any BA15S base lamp. See "Dimensional Drawing" tab to confirm dimensions will work with currently installed bulb on your aircraft.
California Prop 65 Warning Symbol

WARNING: The product may contain and/or expose you to a chemical(s) or substance(s) which are known to the State of California to cause cancer and/or birth defects or other reproductive harm.

Dimensional Drawing

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This works ok as long as your grounds are all cleaned up. The more LED bulbs that I put on my plane, the more my Garmin comm starts to freak out. I noticed its on the borderline of squelching and as soon as you turn off an LED or two, it goes back to being crystal clear.

Jake F
August 7, 2017

Nice idea but useless for aviation because of the rf spurious the led produces which opens the squelch of your comm equipment. The bulb attachment to the housing is very fragile and needed resoldering..

December 6, 2019


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: What is the total length of this bulb, Tailfin 4W-1156 part # 11-11371?

Approximately 1-1/2 inches.

Q: Can these bulbs be used on a certified aircraft since they are experimental?

No, these are intended for Experimental aircraft use only. Not FAA/PMA Approved.