The Olight i3T is a handy companion for everyday life, it is small, light and, as we are used to from Olight lamps, it has a brightness that belies its size. It has two levels, 180 lumens and 5 lumens. The former can illuminate 60 meters, the latter 12 meters. The lamp is powered by a single AAA battery or battery, which is not the champion of capacity, in return it is small and light, cheap and available anywhere, yet it can operate the lamp for 21 minutes at the highest brightness and for 16 hours through with the smaller ones. It is very easy to use, the switch at the end of the lamp is used to turn it on and off, as well as to switch between the two levels. The lamp always switches on with the lower level, but it has a limited-time memory function, if it is switched on again within about 2 seconds after it has been switched off, it starts to light up in another level. With its double-bent belt clip, it can be attached to a trouser belt and also holds firmly on a hat, so it can also be used as an occasional headlamp.