DIY Digital Adjustable 4 20mA Current Signal Generator Simulator Konstantstromquelle Analogue with Polarity Protection : Amazon.de: Business, Industry & Science
10 x LED-Konstantstromquelle Mikro 20mA für 1-11 LEDs Miniatur KSQ Uin= 4-28V: Amazon.de: Beleuchtung
Konstantstromquelle 500mA KSQ 8 – 30 V input/0 – 30 V Output Dimmable LED Light Bulbs: Amazon.de: Electronics & Photo
Adjustable Power LED Driver, 9 W DC 3.3 V 3.7 V 5 V LED Driver 30-1500 mA Constant Current Adjustable Module for LED 18650 Li-Ion : Amazon.de: Electronics & Photo