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LED chip size according to the power can be divided into small power chip, medium power chip and large power chip.According to customer requirements can be divided into single tube level, digital level, lattice level and decorative lighting categories.As for the specific size of the chip is based on the actual production level of different chip manufacturers and there is no specific requirements.As long as the process passes, small chip can increase unit output and reduce the cost, photoelectric performance will not change fundamentally.The amount of current used in a chip is actually related to the current density flowing through the chip.Considering that heat dissipation is the main problem of large current, its luminous efficiency is lower than that of small current.On the other hand, as the area of the chip increases, the resistance of the chip decreases, so the voltage of the positive wizard will decrease.
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