An excellent flashlight-power bank. I have had it for a year and it has been used in difficult conditions, under rain, temperatures of -10, etc., and so far it has performed perfectly. It can easily illuminate a table for a group of 10 people within a 5-meter radius without needing any other light source! I usually use the medium setting to avoid being too bright and to have a good battery life. I haven't needed to use the cold lighting option yet. As a flashlight, it meets basic needs (although it is not its main function). The options of the flashing red light are very useful in case of emergencies, such as car breakdowns, to alert other vehicles, etc. As a power bank, it can charge our devices since it has a 10,000 mAh battery. What I didn't like much is: 1) It is heavy for a backpack. 2) I would have liked it to be 20,000 mAh. 3) I would have liked the lighting wings to be more stable when closed, as I'm afraid they might break if squeezed in a backpack.