The Etlin Daniels LED Boards AC Led Engine is a great product for use in new or existing fixtures. The AC LED design has an integrated DOB driver and therefore requires no External DC driver.The module provides extremely reliable life, good efficiency, economical solution and is recommended for all of your indoor and retrofit applications, such as surface mount, ceiling mount and wall sconces. Since there is no driver you can design a more compact, lower profile fixture. A number of common lengths and wattages to fit all of your luminaire needs Smooth TRIAC/ELV dimming down to 5%. 5 year warranty. Listed on the DLC Qualified Product List and Energy Star for utility rebate eligibility.