This E10 small lamp bulb is designed for educational and experimental purposes, featuring a compact and durable design. Its threaded screw base ensures secure installation, making it ideal for science projects, circuit experiments, and crafting activities. The bulb emits steady light, enhancing visibility and precision during use. Features - Color: Assorted - Material: Glass, aluminum alloy, tungsten wire - Size: 2.20 x 1.00 x 1.00 cm (0.86 x 0.39 x 0.39 in) - E10 standard base: Designed with a universal E10 base for compatibility with various small sockets, suitable for diverse experimental setups - Low voltage operation: Rated for 5 V, supporting safe use in educational and hobbyist applications - Stable illumination: Provides consistent brightness for reliable performance in electrical experiments - Compact and portable: Small size enables easy handling, transportation, and installation in school labs, DIY projects, and scientific activities - Durability: Constructed for extended use to support uninterrupted experimentation and learning Package includes: 20 x small light bulbs