High power LED lamps do generate a fair bit of heat hence the sizeable sinks needed. I believe incandescent bulbs emit a fair amount of infra red as well as visible light though, which is the advantage when it comes to de-icing external lens.

Richard

2018 Roadster 3.7
1966 Land Rover S2a 88
2024 Royal Enfield Guerrilla 450
1945 Guzzi Airone