This Hayco 2491 Double D electrical plug is a great addition to your collection. With its locking plug feature, it ensures a secure connection and peace of mind. The 1/2-inch size fits most standard electrical outlets, making it a versatile option for any electrical equipment and supplies need. The brand, Hayco, is known for its quality products in the market. This unit type comes in lots of 250, making it a great deal for business and industrial use. The smart home compatibility and voltage conversion aspects are not applicable for this product. Add this Hayco 2491 Double D electrical plug to your cart now!