SUMIX-1F Submersible LED Lights 3 Lighting Modes - 10 per box - Remote Control Capable Select Color: Blue Features 1 super bright LED light - 10 lights per box On/off push button on top of unit - push once to flicker, twice to blink, and again for steady on. Uses 2 CR2032 batteries included and replaceable to last up to 12 hours Unit is remote control capable - Remote control sold separately Dimensions: 1.125" D x 1.25" H