All in all I have to say: a top lamp!
* Reliable
* Robust
* Bright
* Long battery life
* Cheaper maintenance
The four simple mignons are inexpensive and last forever. The lamp is not hot as normal Torches (since no backpack begins to smoke). The light is very bright and reaches far. She is me sometimes even fell down (2m on tile) and has except a small dent suffered no harm.
Only a photo lamp is to use only limited because the cone quite narrow and the light is too cold.