Westinghouse Pagoda II Solar LED Post Cap Light for 4 x 4 Wood Posts(White) Durable weather resistant construction will handle the outdoors with ease Bright white LED bulb is powered by the included 600mAh Ni-Cd battery Solar panels will absorb sunlight regardless of cloud cover Includes mounting base for installing onto a rail Measures 5.94" x 5.94" x 4.75"