The Dauer Lampen 3.5 Watt Wedge Base, 921 replacement, is a high powered 12 Volt LED lamp. The Dauer 921 replacement is a highly efficient LED which uses only 3.5 Watts of energy while maintaining a very nice quality of light. It is virtually identical in physical size to a standard 921 which make it ideal for many different lighting applications including accent lighting, landscape lighting, area lighting, flood lighting and architectural lighting. All Dauer Lampen products have been manufactured and tested in accordance with RoHS. Dauer Lampen LED products contain no mercury.