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433mhz Wireless Dimmer Light Switch AC 110V 220V 230V Dimmable Switch Remote Control Module for 10~150W LED Bulb Halogen Dimming

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40W Mini USB Uninterruptible Power Supply module 11.1V UPS Battery Charging Board 4-Channel Output for Router Backup PowerSupply

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10S 36V 15A 18650 Lithium-Ion Battery Protection Board, Electric Vehicle Battery Protection Board, Power Protection Module

XY-AP100L 2*100W Bluetooth Power Amplifier Board 5.0 Digital AUX 2.0 CH Stereo Home Music Speaker Wireless Module Audio AMP

RF VCO Voltage Controlled Oscillator Signal Source 70-120M 433M 800M 900M 1.2G 1.5G 2.4G 5.8G PLL FM Radio SW VHF VHF SDR WIFI

AC100-240V Switching Power Supply Module AC-DC 5V 12V 24V 36V 48V 1A 2A 4A 3A 6A 7A 8A 9A 12.5A Industrial Bare Board

DM542/DM556 DSP Digital Motor Driver, 20–50 V DC, 4.2 A, Suitable for Driving 42 and 57 Series Stepper Motors