Have a boat dock — whether it’s space you own or rent — that lacks a security light, because there’s no available wiring? A wireless motion-sensor LED spotlight by Mr. Beams might be the answer. Quick to install, with no wires and 300 lumens of light, the spotlight turns on when detecting motion up to 25 feet away. Can also be used on decks and backyards. Weather resistant. $39.99. More at www.mrbeams.com.