Those engaging in "FU10" style night crawling often seek out the Queimada ritual . This involves preparing a flaming alcoholic punch made from aguardiente while reciting an incantation to banish demons and goblins.
Rotate the variable spot lens assembly until the beam profile matches the average diameter of your expected target (typically 1mm to 3mm for micro-crawlers). fu10 galician night crawling
See a that work best in pitch black