The PAR can is the lamp housing that safely holds the lamp and any color media (gel) in place. The can also has a mounting bracket that allows it to be bolted to a light bar or truss or by use of a pipe clamp...well, clamped to a pipe.
Raynaud's Disease, Numb, Cold Fingers or Toes, Symptoms and Treatment. Definition. Episodic vasospasm (constriction of small arteries) of the fingers or toes. It is characterized by digital (fingers or toes) blanching or white color, cyanosis (blue), a feeling of numbness or dulled sensory response and rubor (red) after cold exposure and rewarming. It can also be induced by anxiety or stress.
I'm a 20 year old female. On November of 2010, all my nails (including toenails) turned a purple/blue color. There are no other symptoms. There's no pain, and the color has remained the same. They also do not change color in cold or hot weather. If I press against the nail, it turns white but quickly returns to the purple color. It is possible that this is just your normal variant, especially if you don't have any other symptoms, but I recommend that you go to see your primary care doctor if you have not done so already.