<p>Featuring a UL-listed 18 cu. in. outlet box, this electrical mount block can be used on standard or insulated siding.</p><br /><ul><li>UL listed so you can make connections over the top of house wraps</li><br /><li>Holds fixtures up to 20 lbs.</li><br /><li>Easily hides wires for a clean, finished appearance</li></ul>