It's crazy as it illuminates much! When the rule to its max, it's a spot that illuminates the corners and dark corners. This lamp is indestructible: recharge and go for several nights of autonomy without battery replacement worries. The settings are many, yet easy to use, which gives us a range of settings over the length of the beam, lumens distributed and backup time (via the app included). In addition, this front is very small (115 gr weighed). The automatic lighting intensity sometimes proves useful function (eg in open ground.) But sometimes annoying like being near a fire or vapor of our breath passes the sensor. Indeed, as soon as the smoke passes the sensor, brightness only fluctuated. But hey, this is just a minor detail compared to the quality and all the advantages of this lamp. I highly recommend the Tikka RXP for those who need a high quality front, without battery, with an autonomy of the patient, who has a modular lighting at will, which remains light and know how to do forget. Excellent headlamp!