These are 3D printed scale beacons and other nav lenses.
They are hollow and can house up to 5W LED lights with nominal current of 120, 350 , 700 mAh.
The LED light is not included but can be purchased here.
The lenses can be produced as clear or red/ green tinted.
They are available as generic 1/7, 1/6, 1/5 and 1/4 scale.
Other custom scales and custom shapes ( like wing tip or fin lenses ) can be specifically CAD designed by our engineers.