For added security we mark each solar panel with an etch-marked elephant logo on the front glass. This cannot be removed and clearly shows that it is an Zeat Thief-Proof solar panel. In addition each panel is punch marked on the frame with an individual number. A certificate showing this number is given to the house owner and we record this number on a database. A Read-Only copy is given to police and security firms. Each panel is known and can be traced. This makes a stolen Zeat panel worthless. If the owner moves or sells his home we must be informed in writing in order that we can issue a new certificate. If ever you are offered a second hand panel with this logo or number defaced, it is stolen. PLEASE INFORM THE POLICE.