Assertion: led's cost | /r/HasProperty | minor concern
Facets:
value: usually
type: DEGREE
Source sentences:
text: The size of the illuminated field is usually comparatively small and machine vision systems are often quite expensive, so the cost of the light source is usually a minor concern.
text: Cost was a major issue, the first LEDs cost over $200 per diode to produce.
text: The size of the illuminated field is usually comparatively small and machine vision systems are often quite expensive, so the cost of the light source is usually a minor concern.