PAR and BR bulbs share the same voltage of 120VAC and have the same Kelvin degree color code as all light bulbs: 1  2700K (warm white). 2  4100K-5000K (cool white). + 3 5000K (daylight color).
Wandering baseline is signal noise or artifact on an ekg caused by loose connections, patient breathing, etc. .. But nothing to do with the activity of the heart. In brief: Not to worry. Wandering baseline is signal noise or artifact on an ekg caused by loose connections, patient breathing, etc. .. But nothing to do with the activity of the heart.
Many common materials exhibit a mixture of specular and diffuse reflection. The visibility of objects, excluding light-emitting ones, is primarily caused by diffuse reflection of light: it is diffusely-scattered light that forms the image of the object in the observer's eye.