Browse 2,800+ blue led light bulb stock illustrations and vector graphics available royalty-free, or start a new search to explore more great stock images and vector art. Vector image of ultraviolet ...

Scientists are replacing blue LED cores with violet ones to reduce health risks, creating energy-efficient, circadian-friendly bulbs using custom phosphors. LED lightbulbs offer considerable ...

Then came blue LEDs, which have since been altered to emit white light with a light-blue hue. LEDs produce twice as much light as a regular 60 watt bulb and burn for over 50,000 hours.

LED Night Light - 23 Times Less Power Instead of a 7 watt incandescent bulb in the typical night light, this LED uses 0.3 watts. The blue arrow points to the single LED; the red arrow shows the ...