They are, and I doubt you could get them to work on the wrong side.
Had another look at the photo and it may just be the angle of the photo that made it look a bit out. Mind you, Tipsy put one of his on with the spacers reversed, looked a bit funny.
Hope they do the job for ya and those lights should definitely singe the grass if not the wildlife. I got the same on mine.
All good, enjoy
Cheers
Grumpy
