Our 4"x 4" Vinyl Pyramid solar post cap includes four high output surface mount LED's that are hidden from view, but as night falls this one of a kind patented design will cast an array of light onto all four sides of the post cap and surrounding area...a truly unique and exceptional style only from Classy Caps Mfg. Will fit over an actual 4"x4"post. High Performance solar lights - stays lit for up to 10 hours Casts a brilliant white light downward onto the outside walls of the post cap and surrounding area Lights up automatically every night High output surface mount LED technology 3x brighter than standard LED"s 1 Long life AA Ni-MH rechargeable battery included Manufactured from durable White Vinyl (PVC) - won't fade or yellow Will fit over an actual 4"x4" post Quick and easy Do It Yourself installation. 15 Lumens / 4500-5500 Kelvin Download our Instruction Manual