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Duotone panel — violet briefing on the left, lime-sealed detail sheet on the right.
M5 Stack Solid State Relay Unit(BT136S) CH375B U Disk Read Write Module USB Reader Module Module Model 1203B PWM DC Module Model 1203B PWM DC Motor Speed Controller Input Voltage Range DC 6V 28V Maximum Output Current 3A (continuous) PWM Frequency ~20 kHz (inaudible range) Duty Cycle Range 0% 100% (full speed range) Speed Adjustment Onboard potentiometer knob (stepless) Control Method Pulse Width Modulation (PWM) Efficiency High (minimal heat generation) Board Dimensions Approx tm1637 (MicroPython Python) Origin Original Authentic Warranty 7 day warranty on manufacturing defects Support Email & WhatsApp 24 7 Key Features smart lighting Every unit undergoes quality checks before shipment
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US$ 275000.00
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