an electronic component, a 40 ampere dimmer, is used to lower and increase dc voltage for diy materials to control motor rotation

led source integrated circuit engineering diode ampere soldering condensator technology pcb semiconductor board white background hobbyist close material wire resistor electronics controller electrician industrial electronic interior technical tool efficiency house device plastic button switch turn analog object isolated dimmer light home round electricity control equipment energy electric electrical power component used lower increase voltage diy materials motor rotation speed intensity lights hobbyists