re: Light for tracking blood at night

You want a LOW temperature LED with High CRI. I look for stuff around 5000k or lower with 90 plus CRI. I normally get a bright headlamp and bright handheld both with either an 18650 or 21700 battery. Nicer brands to look at would be Acebeam or Zebralight or armytek, middle of the road would be like emisar, lower end but still very usable would be like Sofirn. The lower quality lights will have cheaper drivers and get hotter faster especially with low temp lights. Killzone flashlights is in Texas and I highly recommend buying from them or asking their opinion unless you want something special they don’t stock.