Nguyên lý của đèn dải RGB dựa trên nguyên lý pha trộn ba màu cơ bản. Mỗi hạt LED có một chip LED đỏ, xanh lá cây và xanh lam, và độ sáng của ba màu này được điều chỉnh để đạt được các hiệu ứng ánh sáng khác nhau
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