PCB: Double Layer PCB ( cheap strip light is made of single layer PCB). LED Type: 2835 SMD. 2835 300 LEDS ↓. 2835 600 LEDS (Superbright)↓. 2835 1200 LEDS (Singel Row)↓. LED Type: 3014 SMD. 3014 1020 LEDS ↓.
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