50pcs Practical 3.8V E10 Round Small Light Bulb for Physical Laboratory DIY Projects These small light bulbs are designed for electrical experiments in schools, making them excellent tools for learning physics and basic electronics. Ideal for science DIY projects, they are suitable for teens and students. Features: - Color: Assorted - Material: Glass - Size: Approximately 2.30 x 1.00 x 1.00 cm (0.90 x 0.39 x 0.39 in) - Rated voltage: 3.8V - Rated current: 0.3A - Rated power: 1.14W - Designed for educational purposes in physical science experiments - Lightweight and portable for easy use in classrooms or group activities - Miniature screw base E10 bulb produces bright illumination under standard voltage - Made of glass for durability and consistent performance - Suitable for use in primary and secondary school science projects Package includes: 50 x Small light bulbs