Anaheim Public Utilities is offering a light exchange giving residents the opportunity to turn in an old set of energy guzzling incandescent holiday lights for a new 100-light string of efficient LED technology. The program is offered in hopes of encouraging the use of these energy saving lighting display alternatives this year and in the future. Exchange locations include the Anaheim Central Library and the Canyon Hills Library during their regular operating hours. Proof of residency is required and limit one per household, while supplies last. The program runs through December 16th. For more information, call 714.765.4274.