HD107S-2121 is an intelligent externally-controlled light source integrating control driver and LED

emitting chips. Each LED light source is one pixel. The internal structure integrates an MCU digital interface, data latch, LED driver and other circuits. Through an external MCU, individual grayscale control, cascading control, and color-matrix lighting can be achieved. Data transmission uses a dual-line serial protocol(clock+data),featuring long transmission distance and strong anti-interference capability.

Main Applications:

LED full-color string lights, LED flexible/rigid strips, LED pixel lights, LED pixel screens,

special-shaped LED screens, LED full-color modules, automotive atmosphere lights, and

indicator lights for various electronic products

Main Product Features：

• Built‑in driver + LED in one, forming a complete external-control pixel point.

• Integrated dual-line serial constant-current IC (clock + data).

• Default constant-current output: B/R/G = 17 mA.

• Supports max. clock input frequency 32 MHz; data transmission rate 32 Mbps.

• PWM scanning frequency: 27 kHz.

• 8‑bit per color, 256‑level grayscale adjustable, excellent color consistency.

• No power‑on self‑test mode; LEDs stay off without signal.

• SMD white bracket, 120° viewing angle, high brightness, high stability.

• Suitable for SMT and wave-soldering.

• RoHS & REACH compliant.

• Moisture sensitivity level: MSL 4.