Assertion: led | /r/HasProperty | expensive
Facets:
value: relatively
type: DEGREE
Source sentences:
text: LEDs powerful enough for room lighting are relatively expensive and require more precise current andheat managementthan compactfluorescent lampsources of comparable output.
text: Until recently, LEDs were too expensive to use for most lighting applications because they're built around advanced semiconductor material.
text: Compared to incandescent bulbs, this is not only a huge increase in electrical efficiency, and even though LEDs are more expensive to purchase, overall cost is significantly cheaper than that of incandescent bulbs.
text: LEDs are robust and moderately efficient, up to 32 lumen per watt, but are expensive, although their cost is falling.