I guess this is an old post but maybe still being read and or observed.
I have a little different read on lights and their use but believe me I have em and practice with em (regularly) at home and at the range when possible. I just got the new surefire "Defender" and it is without doubt the finest and brightest little light I have ever had my hands on and it fits well with my handgun for actual use applications. It also can be used as a jabbing tool or kubaton and has the clip for belt carry.
It will work extremely well for lighting up the area of search and it will also function as it should as a "blinding" tool which is very important in self defense. BTW, if you get some quality courses on the use of your tools in low light situations you will learn not to stand in one place while doing anything necessary to fight or egress the area. (move and shoot) or shoot and skoot.
This is my personal idea of home invasion and only one more idea to consider. I think everyone knows the quirks and faults in their home. Noises the house makes while settling etc. It is when something other than that occurs we get excited and are having to take some action. What action is the question and where the differences in response begins and perhaps ends.
I always wonder at those who believe they will awake at 2 AM to a crashing and breaking of glass etc, awake and alert and in a fighting mode. WTF is that! You are first and foremost going to be crapping your nightshirt and anything but organized or even beginning to approach thinking. I don't care who you are or how much training you have, you will have to have some time to adjust to even begin to think and that is "time" and time is not in your favor to begin with. It also amazes me when I read about those who think the BG is an addled fool instead of someone who has cased your house and you and has a very good idea of what he wants and how he is going to get it and you are in his way.
Ask someone in law enforcement or do some studies on your own about those bad guys and you will find they are pretty damned good at what they do and killing or maiming you and everyone who gets in their way is meaningless to them. Not all of them are stupid, or incapable of thinking and planning their actions. If you check them out you will find that some are actually professional at what they do.
To begin with, THEY have every advantage in this fight and you are "reacting" to everything that is happening until you get your wits about you. That takes time and time is distance and before you know it, they are in your face with whatever tools they brought to do the job. Any time you are reacting to anything the other guy has the advantage, right!
Here is my plan and the one that my wife and I practice and have armed ourselves for in the event something of this nature occurs. First of all, I train a lot and I practice a lot so if necessary, I can shoot and usually very well with whatever weapon I have at hand. But will I even have the chance to shoot, if I have done my homework, no I will not. If I have planned my self defense in my home properly, I will never have to engage the bad guys.
First, the dogs should warn me of an intruder. If so I am prepared to deal with them. But I keep thinking that if I encounter or face them, they also have the opportunity to shoot, NOT GOOD.
Bullets are indiscriminate. So I hope to make it difficult to shoot or beat me or my wife.
If and when someone ever penetrates my perimeter, I will slam the bedroom door, both of us as soon and quickly as possible take positions in the bedroom. We have the firearms, flashlights, pepper spray, dogs and phones with us. Once the door is closed she will if possible dial 911 and we wait for the cav. We have the house key available and can tell the officers where to find it in order to gain access. We will stay right where we are until we are cleared to come out safely.
I cannot imagine looking for a fight in the dark or any other time if I can avoid it. For those who are looking for one, be very careful, you may find it and it will NOT be fun regardless of who the winner may be. Something to think about when contemplating a close quarter fight. Remember, you can shoot the heart out of the body an the person can continue to fight for fifteen to twenty seconds. You also might want to research how accurate police officers are with their firearms in close quarter combat. (24 out of 100 hits and only 4 or 5 of those will be fatal. Still want to go looking for the bad guy in your own home in the dark?
Some of the finest instructors I have had the opportunity to train with in the past many years, (Clint Smith, Jeff Cooper, Maas Ayoob, Robbie Baarkman, Dennis Tueller and Louie Awerbach just to name a few will tell you repeatedly and often to "AVOID" the confrontation. Words of wisdom to live by actually. So every action that I take will be to get away from the bad guy as soon and as quickly as I can. Therefore, searching for or looking for a fight in the dark is just not a smart thing for me to do IMHO. You may be different, good luck.
Train and prepare yourselves to shoot if you fail to harden your perimeters and someone gets through. Lights are great and wonderful tools, but to go (searching) for a bad guy even in your own home seems like a very bad idea and an almost positive way to get hurt no matter how good of a shot or how big your gun. If you find the bad guy and even if you get off a shot or two, you are very likely going to be injured or killed yourself. Bad Karma. I for one, will hide and make them come to me and if they do before the can arrives I will be fighting from a well defended and excellent defensive position and I will have backup.