There are lots of poor quality LED bulbs out there. Just like anything else! Keep in mind that heat=energy consumed and most of us convert to LED interior bulbs to greatly reduce our energy consumption particularly when off the grid.
How disappointed I would be if I had replaced my cheap 1156 and 921 bulbs with LED equivalents only to later find out that I am burning exactly or similar electricity per hour!
And you can't even swear by the information on the packages, best to hook up multimeter in line and see for yourself how much amp draw when you get home from the store before you decide to keep and install or not.