TruOpto OSV4D6CAC1E 4.5W COB Star UV LED 390-400nm 120° 850mW@200m...

LED - Light Emitting Diode - a small light source

Black - A colour which does not emit any colour of the spectrum. Black absorbs all frequencies of the spectrum.

UV - Ultraviolet - a specific wavelength of light invisible to the human eye

star - A giant ball of plasma held together by gravity.

LED - Light Emitting Diode. A bulb that is very efficient at producing light. Often small.

Ideal - Something that satisfies a perfect criteria.

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