Amazon.com: DAOKI 5 PCS 5v Relay Module for Arduino ARM PIC AVR MCU 5V Indicator Light LED 1 Channel Relay Module Works with Official Arduino Boards : Industrial & Scientific
LiteXpress LXB530 LED Upgrade Modul 530 Lumen for 3-6 C/D-Cell Maglite, dont use for 2 cell Maglite - - Amazon.com
MHCOZY WiFi Wireless Smart Switch Relay Module for Smart Home 5V 5V/12V,Ba applied to access control, turn on PC, garage door (5v) - - Amazon.com
Amazon.com: MakerFocus Raspberry Pi 4 Camera Night Vision Camera Adjustable-Focus Module 5MP OV5647 Webcam Video 1080p Compatible with Raspberry 3 B+/3B/2B+ : Electronics
Amazon.com: SunFounder 2 Channel DC 5V Relay Module with Optocoupler Low Level Trigger Expansion Board Compatible with Arduino R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Raspberry Pi : Electronics
LiteXpress LXB430 Dual Mode LED Upgrade Modul 430 and 40 Lumens, ONLY to be used for 2 C/D-Cell Maglite Flashlights - - Amazon.com
Amazon.com: KingBra MAX6675 K-thermocouple Module Temperature Sensor Replacement Part Compatible with Arduino : Electronics