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Surgical lamps are utilized in the surgical venue to enlighten a surgical field and limit the odds of postoperative dying, general tissue harm, contamination and different issues that can emerge during a medical procedure.

High purity alumina (HPA) is a high-purity form of aluminum oxide. It is majorly used in production of synthetic sapphire, LED lighting, lithium ion batteries, plasma display screen, photovoltaic cells, sodium lamps, phosphor, and optical lenses.