High-quality materials: These G4 12V 20W halogen bulbs are used with high-quality tungsten wire without lead or mercury, they are manufactured under our strictest quality guidelines and are safe for you and your family. The lifespan of G4 halogen is over 2000 hours, reducing replacement and maintenance costs. Performance: Our warm white G4 bulbs emit a warm 2800k light that is pleasant and bright for the eyes, not too bright. These 20W G4 halogens produce 300 lumens of uniform light in all directions, with uniform colors and no strobe, effectively protecting your family's eyesight Lighting: Commonly used in accent lamps, woodworking disc lamps, chandeliers, wall shelves, cabinet lighting, floor lamps, table lamps, track lighting and landscape lighting, RVs, caravans, boats, yachts, etc. Usage: G4 halogen lamp for crystal lamps. Also widely used in countertops, cabinets, table lamps for home or office, garden or landscape lighting, cabinets, etc. Easy to use: A set of 10 G4 halogen bulbs can be used for the dimming circuit and instantly light up without waiting, Plug and play. Classic clear glass design without flickering and buzzing. Capsule bulbs are ideal for breakfast areas such as kitchen, living room, bedroom, table and floor lamps, ceiling lights, etc.