100PCS 30-1500MA DC LED Driver PWM Module — Constant-Current Adjustable for 3.3V / 3.7V / 5V USB LED Flashlight & 18650 Li-ion

Pack of 100 compact LED driver modules designed for powering and dimming small LED loads. Each board provides an adjustable constant-current output from 30-1500MA and supports DC input voltages of 3.3V, 3.7V and 5V. PWM control allows smooth brightness regulation, making these modules ideal for USB LED flashlights and circuits run from 18650 Li‑ion cells. Key points: - Constant-current adjustable output: 30-1500MA - Compatible input voltages: DC 3.3V, 3.7V, 5V - PWM dimming control for flicker-free brightness adjustment - Intended for USB-powered LED flashlights and 18650 Li-ion applications Each unit is a simple control board intended to be integrated into LED assemblies; follow standard wiring and heat-management practices when installing. Sold as a bulk set of 100PCS.