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Grade A cells CR1632 Ensure Longer BReland Sun Quiet Mini DC 3-6V 120L/H Brushless Portable Motor Submersible Water Pump Quiet Mini DC 3-6V 120L/H Brushless Portable Motor Submersible Water PumpPKCELL 10PCS Button Battery CR2016 3V Battery for Watches,Control Toy Car Brand:PKCELLRUJUE 10pcs Mini Generator Motors 3V-12V DC Motor Electric Motor for DIY Electronic Wind Turbine Fan Hand Cranked Power Model ★ This 300 hobby motor is a general purpose motor, work with batteries or solar cells perfectlyEMSea EMSea 2PCS USB Adjustable Voltage Cable 5V to 1.5V 3V 4.5V 6V 7.5V 9V 12V 5.5x2.1MM USB Cable Power Cable Converter with Mainly used to adjust the brightness of single color LED lights, such as 3528, 5050, 5630 led lights for lighting, holidReland Sun 5pcs DC 3V-6V to 400kV 40000V Boost Step Up Power Module High Voltage Generator 5pcs DC 3V-6V to 400kV 40000V Boost Step Up Power Module High Voltage GeneratorELEGOO ELEGOO UNO R3 Project Complete Starter Kit with Tutorial Compatible with Arduino IDE (More Than 200 Items) More than 200 components, this is the most complete starter kit compatible with Arduino IDE. 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