from what i understand, get two 24" aka 60cm led strips with self adhesive tape on the back. put one on the top and one on the bottom just behind the grill. wire it into the fan which should be 12v
schladog should be able to clarify
see here for an example, or just go to ebay and type in 60cm led strip
https://solarlifesolutions.ca/solar-panel-maintenance/
http://cgi.ebay.com/ebaymotors/NEW-RED-LED-60cm-Waterproof-STRIP-Ribbon-Flexible-Under_W0QQcmdZViewItemQQhashZitem56362464cfQQitemZ370275542223QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories