The size and weight of these type torches will be a major obstacle in their being used. Having 5 million candlepower tells us nothing really as torchy people use lux and lumens. Yes it may be bright but at a cost of being an unwieldy beast and I would bet a much much smaller and lighter 'tactical' torch could out perform this one in every way and without spending too much extra.
I have had untold torches from 500,000 candles to 20,000,000 candles and 6 volt krypton bulbed to wall hung rechargeables in all forms, mag lites to multi led heads and all are consigned to the bin either through breaking, not performing or being too big and heavy.
A pocket size light can now throw a beam 200 yards and last for many hours on a set of tiny rechargeable batteries. Also it can be used in various modes with different brightness levels which is very important as there are times several million candles of light is just too much.
I was in Costco yesterday and they had the 20 million candle yellow beasts on display and they must have been 2ft by 1.5 ft by 1 ft in size and weigh maybe 10 pounds!! I think the battery lasts half an hour or was that an hour before a 10 hour charge was needed!! Made me smile that beast did!
A £50-100 Fenix, Olight, Eagletac, Jetbeam etc... pocket light including several sets of batteries and charger will be all you ever need and will last well even if abused so long as you look after the O rings. Cheaper tactical lights are available and if your happy to use the warrentee every time the thing goes wrong or put up with the thing letting you down when you most need it then all's fine and well.
Steve.