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3, the external lamp board must be current-limited resistor, otherwise it will burn the lamp beads. Desk lamp circuit board X1. 4, stepless mode: short touch, white light / warm light / neutral light.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.