NF-3X (eXtra) compared with the NF-3RC has a strengthened second landing lights circuit so that it can power reflectors with 350 mA or 500 mA. LED Luxeon models and/or crypton bulbs can be used..
The NF-3X-350 Set, besides control circuit, includes 1x5 mm 20 mAh green LED, 2x5 mm 20 mAh red LEDs, 6x5 mm 20 mAh white LEDs and 1xreflector with a 25 mm 350mAh white LED for landing gear.