Key benefits and why you need this LED driver Reliable, adjustable current control: delivers 30–1500 mA so you can set the precise drive current required by your LEDs for brightness and lifetime. Broad lowvoltage compatibility: operates on DC 2.8–6 V, making it suitable for common battery and lowvoltage supplies (3 V, 3.3 V, 3.7 V, 4.5 V, 5 V, 6 V). practical output: supports up to 9 W of output power and can drive up to 1.5 A safely, letting you power small multi‑LED assemblies without oversizing components. Flexible LED count support: capable of driving 1–16 LEDs rated 2.8–6 V each, so it works with singleLED projects and compact multiLED arrays. Function and performance Function: constantcurrent LED driver designed to supply a stable current to LEDs across a wide lowvoltage input range. Output current range: 30–1500 mA (adjustable to match LED requirements). Maximum output power: 9 W. Maximum safe current: 1.5 A (do not exceed). LED compatibility: drives 1–16 LEDs rated 2.8–6 V each. Compatibility and use Optimized for lowvoltage DC sources commonly used in portable and smallscale applications (3 V, 3.3 V, 3.7 V, 4.5 V, 5 V, 6 V). Works with common LED forward voltages between 2.8 V and 6 V. Suitable when you need controlled current rather than a simple resistorbased solution. Typical applications (practical examples) Portable lighting: drive one or multiple LEDs from a singlecell Liion battery (3.7 V) for flashlights, headlamps, or handheld lamps while maintaining stable brightness. USB and 5 V projects: power LED arrays or accent lights from 5 V supplies or power banks with reliable current control and up to 9 W output. Small fixtures and signage: run compact multi‑LED modules (up to 16 LEDs) for indicators, cabinet lighting, or backlighting where lowvoltage supply and consistent LED current are required. What makes it stand out Wide lowvoltage operating range for versatile battery and DCpowered projects. adjustable current span (30–1500 mA) to accommodate both lowpower indicator LEDs and highercurrent LED clusters. Clear limits: 9 W maximum output and 1.5 A maximum current ensure safe operation when configured correctly. Important usage notes Ensure total LED forward voltage and current requirements fit within the 2.8–6 V per LED and 30–1500 mA current limits. Do not exceed the maximum output power (9 W) or maximum current (1.5 A). Confirm your supply voltage is within the specified DC 2.8–6 V range before use. Specifications (concise) Working voltage: DC 2.8–6 V (suitable for 3 V, 3.3 V, 3.7 V, 4.5 V, 5 V, 6 V) Output current: 30–1500 mA (adjustable) Maximum output power: 9 W LED drive capacity: 1–16 LEDs rated 2.8–6 V each (maximum current must not exceed 1.5 A)