LEDs have the following advantages over neon:
Power consumption: LEDs use much less power than neon to deliver the same light output.
Versatility: LEDs offer a far wider a range of products and configuration of solutions than neon. Neon lights have limitations due the nature by which they produce light and the way they are fabricated.
Heat dissipation: LEDs produce less heat than neon.
Safety: Neon lights runs on high voltage and are unsafe when positioned in places where people can touch them.
Neon lights use fragile glass tubes.
Color range and effects: LEDs offer a wider palette of colour and color changing effects through digital control.
Maintenance: LEDs need virtually no maintenance compared to neon.