The micro light bulbs feature a screw base, making them easy to install and replace in various devices. Their bright and consistent light output is ideal for night lights, small circuits, and craft projects. These bulbs are essential for anyone needing precise and dependable lighting in small-scale applications. Features -Color:Multi -Material:Glass -Voltage: 3.8 V -Size:2.00X1.00X1.00cm/0.79X0.39X0.39in -Education tool: specifically designed for physical experiments, these mini light bulbs are an excellent education tool for teaching and learning in science classes and labs -Low voltage: with a 3.8 v operating voltage, these light bulbs are safe and efficient, making them ideal for use in various experimental setups without the risk of high voltage hazards -Reliable performance: these light bulbs are built to last, offering reliable performance and consistent lighting for all your experimental and practical needs -Easy installation: the miniature size and screw base design of these light bulbs make them easy to install and replace, saving time and effort in setting up your experiments -Wide range of uses: from education purposes to home projects, these light bulbs are versatile and can be used in a variety of settings, including classrooms, laboratories, and homes Package list: 10 x Mini Light Bulb