The headband: fully sufficient due to the low weight and the weight distribution (battery rear) sits the lamp absolutely sure a 3rd head strap is not necessary in my opinion.
The battery compartment: here I can not understand the criticism of other reviewers. The problem of "safe and spill-resistant housing the batteries / accumulators" was here on the contrary, as I technically brilliant and simply solved my:
The batteries are in a sufficiently robust, laterally raised plastic shell, the lateral position of the batteries fuse rubber webs were placed between the batteries, the negative form ordinary, hard gold-plated coil springs. The highlight: The whole part is splash-proof covered Duch a hard rubber cap, which is drawn on the battery compartment and in a side circumferential groove close to the person clicks. This is many times better than the known plastic battery compartment sliding Deckelchen!
The cover fits tightly and securely in the art, is additionally secured because it bears while wearing the lamp at the back.
I usually take care of my battery in a charger with single channel control and discharge function etc. recycle. Still, I find the ability to recharge the lamp side by plugging an own separate charger on the headband fast times tip.
Not optimal, the dimming function. Is that of lying on top of the battery compartment lever really waterproof, I doubt it, it would not even try it.
He also moved easily independently when wearing zBeine cap over it.
Would Apart from that a dimming via push button under a rubber cap (half-power, full power) completely sufficient. As already described by others: the first third is happening anyway nothing.
And now the weak point of all: love engineers and developers of "Two Brothers", the tilting mechanism for the lamp you tasted the 5th star! For a manufacturer, the baggy Minischarnierchen this is otherwise its quality has rightly pointed out that simple unworthy.
It has thus been under the impression that the lamp could vorkippen at a rapid head movement, as is the only when it was time for a year in regular use ??? A screw for tensioning a spring washer would be the least.