Signaller’s device weighing practically nothing?

Usage examples of very light.

A big boxy float negotiates the corner on to the bridge, then one stacked with multicolored bales, and the next is a four-meter-long model of a starship, very light because it's being carried on poles on the shoulders of just four men, and behind them another big cardboard imitation crate, planking sketched on it in splashy lines of black paint .

From his study window he saw the flash of a lantern, which lit up a red cloak, and for an instant he observed the very light hair and white face of his niece.

I feel very light now, as if I have taken off a heavy coat and am walking through the snow.

The bones are very light and strong, while the weight of the immense toothed beak is balanced by the bony outcrop on the back of the skull.