yeah it sucks, lol. Went through two of the dorman ones and couldn't get them to seal at the cap. So bit the bullet and paid for the oem to just have it leak too. Hoping this one holds as long as the 16 year old original one did.
On mine there is a very small allen head you can remove to rotate the housing. Light output from these 70w ones is pretty darn good! Will try and get some pics of them soon,