PAR is an acronym for parabolic aluminized reflector. A PAR lamp, which may utilize either an incandescent filament, a halogen filament tube or a HID arc tube, is a precision pressed-glass reflector lamp. PAR lamps rely on both the internal reflector and prisms in the lens for control of the light beam.
Causes of Red Spots on the Skin. 1  Acne (Pimples) Acne is a localized skin inflammation as a result of overactivity of oil glands at the base of hair follicles. 2  Allergy (Allergies) An allergy refers to a misguided reaction by our immune system in response to bodily contact with certain foreign substances.
What Is Hidradenitis Suppurativa? Hidradenitis suppurativa (HS) causes you to get painful bumps under your skin near some of your sweat glands. There's no cure, but treatments and lifestyle changes can bring some relief and cut down on flare-ups. The sweat glands that cause you problems are called apocrine glands.