Just screw these A21 led light bulbs into an American standard E26 base, and they're ready to light up. It's easy to install. These bulbs are suitable for a variety of settings. They work perfectly with metal wire و Metal Cage Pendant Lights, and match well with black pendant lighting fixtures. They can also be used in enclosed fixtures and damp locations. Whether for indoor or outdoor use, in a home or commercial space, such as kitchens, غرف المعيشة, غرف نوم, bars, المطاعم, الفنادق, and shops.