I can recommend this fantastic powerful all-metal little torch with built-in rechargeable battery (micro usb), front led (adjustable throw) and COB strip light on the side. COB strip light very useful for lighting up an area.
less than 4 inches long (I have it measured as 9cm x 2.5 cm at widest point)- very pocket-able. seems very similar (if not the same) to the one posted above by another poster.
great little torch tbh.
only $2.80 delivered - got mine in 2 to 3 weeks.