For better results, specify desired carry method (AIWB, AIWB 4 o clock, OWB, etc) and the light(s) you're considering for carry.
That being said, I didn't think that the meager light output of my TLR-6 was worth the squeeze on my original Shield.
If a weapon light hasn't got the candela (around 5,000+ for non total darkness and intermediate light sources) to illuminate a potential threat without directly pointing a gun at it, I'll stick with a handheld light. The newer TLR-6 HL is a bit borderline there, but I haven't handled one.