Replace a broken solar collector on your Everlite address plaque. Fully charged, the batteries will operate the illuminator for up to 14 hours. Installation instructions are included. It has 25 ft. of wire that allows for remote placement of the solar collector. The collector is 10.75" tall and the panel is 5.25" across. It has a high capacity nickel hydride batteries that last up to 3 years. NOTE: To maximize collector recharging, un-shaded Southern exposures are best. The unit's performance is enhanced when placed facing an un-blocked south exposure.