As bright lamps with current LED technology can be, the comparison with the much smaller LED LENSER P14 (180 Lumens, currently EUR 20 more expensive than the MAG-LED 4D). The latter exceeds the MAG LED 4D clearly both in the luminous efficiency as well as in the focusing ability. This is true even for the price comparable (30 EUR), but again significantly smaller P6 to (80 lumens). Let's be honest: the focus function of MAG is not just the big seller! The spot focus may still be ok. However, the surface illumination (flare) of the MAG-LED is not really useful, because forming a large black circle in the middle. This is when the LED Lenser thanks lens optics is not the case!
Nevertheless, due to the very solid housing, the MAG has undisputed benefits! This, however, can still significantly increase, if instead of MAG standard LED module TERRALUX the LED module TLE-300M retrofit (takes 2 minutes, only for MAG 4D, 5D, 6D). This reaches 500 lumens (3 Cree LEDs) and the MAG standard LED degrades finally to dim Funzel! Who really needs light, can not avoid this LED! Comparison Videos (Beam Shots) there on Youtube sufficiently. For those who want the MAG outdoor use (geo-caching, etc.) clearly the better choice! Ok, cheap, the fun is no longer, but still inexpensive! TERRALUX requires from 55 EUR for the upgrade. But it is worth, it equips but our beloved MAG finally with current lighting technology. Better is the enemy of good up!
PS: I have all the models tested here and was able to directly compare.