Small brushless Liquid Pump 24VDC (4 L/Min) HMax 300 CM pluggable You can add the analog

You can add the analog capability to Arduino with Sparkfun MCP4725 12-Bit Digital to Analog converter module

LASER Tree LT-80W-AA-PRO 80W solid state laser head professional kit has all the capabilities you may need for your LASER cutting machine

This product contains lead (Pb)

can charge mobile phone

L7812CV  negative  Regulator  12V 1A TO-220

Small brushless Liquid Pump 24VDC (4 L/Min) HMax 300 CM pluggable You can add the analogThis is high performance brushless DC pump with long life, small size, high efficiency, low noise and low power consumption and adopt high performance stainless steel shaft. It is submersible and entirely waterproof (IP68) with flow rate of 4L MIN. The axis is enclosed with static sealing, not dynamic, which can avoid leaking problems. Can be used in many fields, such as cooling system, Garden fountain, Aquarium, car cooling system, humidifier, air