Modulating LED Beam Angle with a Fresnel Lens
This video shows you adjusting LED beam angle with fresnel lens.
LED bulbs that is arranged SMD 5050 26 things were used after removing the protective cap at the front.
This video shows you adjusting LED beam angle with fresnel lens.
LED bulbs that is arranged SMD 5050 26 things were used after removing the protective cap at the front.
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