ATT-H121A is an isolated constant current driver power supply with compact size, complete functions, stable quality, and high cost performance. It can drive 9-12 1W LEDs in series. The product features wide input voltage range, complete protection functions, energy saving and environmental protection, high precision constant output current, etc.
The ATTHI121A is an isolated constant‑current driver designed for PAR38 LED spotlights. It can power 9‑12 × 1 W LEDs (or 3‑4 × 3 W high‑power LEDs) and features a compact size, wide input voltage range, and multiple protection functions.
The manual provides product features, electrical specifications, characteristic curves, wiring instructions, and safety precautions. It also lists the required connections for the four leads (AC input, LED+, LED‑) and advises on proper installation to ensure safe operation. This manual is written in Chinese.
| Input voltage | AC 85 V‑265 V, 47‑63 Hz |
|---|---|
| Output voltage | 25 V‑40 V |
| Output current | 320 mA (max) |
| Withstand voltage | DC 3.5 kV (60 s test) |
| Leakage current | < 5 mA |
| Protection rating | IP50 |
| Temperature rise | 35 °C |
| Storage temperature | -20 °C to 85 °C |
| Application | PAR38 LED spotlights, 9‑12 × 1 W LEDs |
The driver accepts an AC input voltage from 85 V to 265 V at 47‑63 Hz.
It can drive 9‑12 × 1 W white LEDs or 3‑4 × 3 W high‑power LEDs.
The driver provides open‑circuit, short‑circuit, overload and over‑temperature protection.