Temperature sensor and heat retention in Lucifer headlamps

All Lucifer headlamps are aluminum, have a copper circuit board and the most efficient components. All of this minimizes waste heat generated while maximizing its radiation to the environment. The overall surface area of the headlamp, the amount of fins and their placement has a big impact on cooling. Headlamps up to 600 lumens will keep cool in virtually all conditions, even without movement. Higher light outputs already require some movement to keep them from overheating in continuous operation. Our individual headlamp models usually have so many fins that they will cool down to their maximum during slow running.

Each Lucifer headlamp has a temperature sensor that constantly monitors the temperature of the headlamp and will lower the mode if the temperature exceeds 60-62°C. Usually this is exclusively the headlamp's maximum mode BOOST, or even the second most powerful mode HIGH, where it can be reduced due to overheating. The other modes do not generate enough heat to overheat even a headlamp without moving.

This overheating is absolutely minimal with our headlamps, relative to the light output achieved or competing lights. Higher headlamp models really cannot be made to cool down to max mode even in a place without movement. Such a scenario is completely unrealistic - after all, a headlamp would have to have many times more ribbing and thus significantly more size and weight, and no one would want to wear such a headlamp on their head.

The need for a temperature sensor

Any more powerful headlamp (say over 500 lumens) should have a temperature sensor or other means to prevent overheating - e.g. a maximum limited to a few seconds of operation. Excessive heat generation and increase in temperature of the headlamp leads to reduced lifetime of the electronic circuitry and damage to the LEDs or dramatic reduction in their luminosity. In addition, high temperatures can also burn the user.