Thorlabs specializes in the building blocks for laser and fiber optic systems. From optomechanical components to telecom test instrumentation, Thorlabs
How to Drive High Power LEDs With A DC-DC Adjustable Step-Down Module
USB constant current LED string driver from Jussi Kilpelainen on Tindie
WS2811 high power driver - General Electronics - Arduino Forum
RGBZONE DC 5V USB RF RGB LED Controller, 17-Key RF Wireless Remote Control, 4 PIN 5050 3528 2835 RGB LED Strip Lights Controller : Everything Else
DALI MAGIC/220-240V DIM Osram, Osram LED Driver Progammer, 54 → 240V Output, 1.5 → 90W Output, 250 → 1000mA Output, Constant, 893-0558
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Adafruit Universal USB / DC / Solar Lithium Ion/Polymer charger [bq24074] : ID 4755 : $14.95 : Adafruit Industries, Unique & fun DIY electronics and kits
32W constant current adjustable LED Driver XTC32-0700P-UNV-I - LED World Lighting
Constant Current USB-Controlled LED Driver
DC 3.3V 3.7V 5V LED Driver 30-1500MA Constant Current Adjustable Module PWM Control Board For USB LED Flashlight 18650 Li-ion - AliExpress
DC 3.3V 3.7V 5V LED Driver 30-1500MA Constant Current Adjustable Module PWM Control Board for USB 18650 Li-Ion