Typically dipped beam cutoff is and has to be very well defined using focused optics on LED lamps Bob, given their intensity. Although Land Rover ones on mine you can see the cutoff as a sharp demarcation line on the rear of cars in front when in traffic.

You can also see the cutoff sharpness here on the right when comparing with splatter (note illuminated bricks above) from old high intensity halogen on the left.

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I think it's for this demonstrated reason that LED bulbs in halogen reflectors were outlawed.


Richard

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