I have used this flashlight for a long time and still use it today for everyday purposes and took it camping recently. This thing still keeps a good charge for about 4 hours if in constant use and keeps going if not charged for about a weak. It has about 15,000 candle power if my memory serves correct. It took me about 6 weeks looking for a replacement battery for this and a new switch. It still does a great job. Stream Light is the best in my book. It also helped with to persuade some minds along with about 8 stiches on a few subjects. It helps to change the mind of the "Stupid is as Stupid does" individuals of this world.