NOT IN HAND BUT ON HAND

If you want to poke around late at night in the car engine or look in a dark cellar for pickles, jams, — all lighting required a flashlight. But it is not very convenient, as you have to hold it in your hand, and perform the work of one (other) hand.
However, if using rubber bands or sticky tape to secure the flashlight in the elbow — and lights in the right place, and the opportunity to work with two hands.