Sometimes I chuckle when I think about guys with their $150 tacticool flashlights.
For one thing, it leaves no doubt as to where YOUR location is, which is not a good thing when you are being watched by hostile eyes. I guess one solution would be to have night vision goggles on your nightstand. Overall, I prefer to have all the lights in the house on if some thug is creeping around inside. I wouldn't go hunting for him (waiting to be ambushed) if I could help it, that's for sure. If I did, I'd absolutely want a weapon mounted light, so by the he sees it, there can easily be a high lead delivery en route to him.
Mauser Werke, Schmidt-Rubin, Colt, Walther, HK, Weatherby, Browning, Ruger, Beretta, Savage, Bushmaster, Marlin, Mossberg, Remington, Saiga, S&W, Sig Sauer....a few friends of mine