Someone in the R-22 with a Mag-Lite duct-taped to the console maybe uses candles, for all I know, which begs the question why are you flying at night in a piston single anyway unless you have a death wish.
The R-22 has the best illumination for the instruments and cabin of all helicopters that I have flown at night! AND I currently fly NVG AS332L1 Super Puma.
Itīs surprising that a $150K small piston heli can have decent instrument lights but a multi million dollar machines donīt