Going overboard at night, especially offshore, can be a death sentence if the crew onboard can’t see you. In recent years any number of different strobes and other lights have been developed to rectify this situation, but few if any have matched the Lume-On for practicality or convenience. Comprised of a pair of water-activated LEDs, each equipped with an adhesive backside, the Lume-On simply attaches to the underside of the bladder in any inflatable lifejacket. In the event you go overboard, it then activates automatically, shining through the bladder, in essence employing it as a kind of a lens. It would be hard to think of an easier or cheaper way to increase your chances of survival in an MOB situation. A clever piece of kit by any standard.

$19.99. Spinlock ltd., spinlock.co.uk