Headlamp (primary light)
The headlamp is the primary lamp that you really shine with physically. Headlamps are available as a hand lamp or as a cable lamp. With a hand lamp you have the entire lamp, including the battery pack, in your hand. With a cable light, your lamp is connected to a cable. That cable is attached to your BCD or to your diving bottle. That’s where the battery pack is, to which the lamp is attached. The advantage of the hand lamp is that it is smaller and more compact than a cable lamp. A disadvantage of the hand lamp is that it has a shorter burning time. A hand lamp burns for an hour on average, a cable lamp always burns longer, because of a higher battery power. This can give a few hours of light. A cable lamp often works with a goodman handle. That is a lever through which your hand moves. The lamp is then, as it were, clicked on your hand so that you can keep using your hand during the dive. You always carry a cable light on your left hand. The battery is on the right. The reason for this is that the long hose (2.10 m breath regulator hose) passes behind the battery pack so that it does not float.