The ballast resistor needed to operate at either 28 VDC or 5 VDC (or 5V, 400 HZ.) is internal to each unit and the operating voltage is indicated on the side of the hood. The LED source produces a more efficient and reliable lighting product than an incandescent bulb as well as offering a vastly extended life. The bellows style contact is designed to allow for spring contact wear in older aircraft and should prevent most intermittent conditions previously caused by uneven lamp contact. Hoffman LED Post Light Caps may be retrofit into currently installed incandescent post light bases as a direct replacement.

Please note: Mixing LED sources with incandescent and using existing dimming circuits may cause uneven dimming because of the lower current requirements of the LED. In 5 Volt circuits, experience shows this to be less of a problem. If there are doubts about your circuit, please consult with Hoffman Engineering.


Key features

  • NVIS White or Green-A available
  • Plastic Lens
  • Polycarbonate housing


  • Reliable
  • Efficient