Why do some DVLED products have Copper wires or Gold wires as the bonding wire? What's the difference?

Answer: Gold (Au) is used in mid- to high-end products as the bonding wire. Copper (Cu) is often used in mass-marketed products as the bonding wire.

Products using Gold have a higher and more consistent product quality. Heat also dissipates less, making it more energy efficient (~10%). Since it has more stable physical properties, it relatively has a longer life than Copper. Copper, however, has a higher price-performance ratio than Gold, making it the appropriate selection for mainstream DVLED products.

Last modified: Apr 2022

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Why do some DVLED products have Copper wires or Gold wires as the bonding wire? What's the difference?

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