If you trust vendors claims with ANY standard other than milliamp draw with LED lighting, you are begging to get threaded. Lights that claim 10 watts consume 2.5 even CREE and Bridgelux vendors lie through their teeth. I have SHELVES of LED lamps that equal a laugh a minute. Do yourself a favor and get hard data from the manufacturer tegarding milliamp draw. A lamp that draws too many milliamps @ 12 volts has an extrodinarly short, unhappy life. To date I must have caught 30-40 vendors with the milliamp trick. Some of these guys are shiftier than a 15-speed Road Ranger.