LED lighting life problem "hidden rules"


LEDs are optoelectronic devices that make pn junctions from compound materials. It has the electrical properties of a pn junction device: IV, CV, and optical: spectral response, luminescence, directional, time, and thermal properties. Now many companies are saying that their LED lamps can .......

TP Merlot's law of life

The dissociation of minerals during ore grinding is manifested by the production and increase of mineral monomers, and also the process of continuous decline in the content of continuum in the product. Under the action of external force, the original continuum wi.......