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.
WebMD Symptom Checker. Pain or discomfort, Warm to touch (Elbow) and Warm to touch (Thigh) WebMD Symptom Checker helps you find the most common medical conditions indicated by the symptoms pain or discomfort, warm to touch (elbow) and warm to touch (thigh) including Cellulitis, Abscess, and Blood clot in the legs.