The answer to 'difference between outlet' is that there are two main types of electrical outlets: standard electrical outlets and GFCI (ground fault circuit interrupter) outlets. Standard outlets provide basic power for most household devices, while GFCI outlets offer additional safety features to protect against electrical shocks and fires.
Standard outlets have two parallel slots for the hot and neutral wires, and some also have a round ground slot. GFCI outlets have the same basic configuration, but also include a test and reset button that can detect ground faults and quickly shut off power to prevent electric shock hazards. GFCI outlets are typically required in areas with high moisture, such as bathrooms, kitchens, basements, and outdoor areas, where the risk of electric shock is higher.