I don't have any fancy modded lights, but here is what I like.
EDC: Eagletac D25C Clicky (2014 Titanium version, XP-G2). This light is very compact, being a 1xCR123A light, but it has moonlight, low, medium, high, so it's got a mode for every situation. Small reflector with XP-G2 so it throws...