In brief
The beacon and the work lamp do not solve the same task.
Useful to know
HELLA offers optical warning systems with rotating and flashing light solutions. Their main task is signalling, other than illuminating a work area or road. [1]
When selected, specify the visibility from the required directions, installation location and power supply. The mere presence of such a product does not determine who is entitled to use it in a specific situation; the application is checked separately. Don't compare a signal system and a headlamp by power alone. The useful parameter is related to the function for which the device is designed.
Sources
For further detail and to check the information: