Description Designed for experiment, this tiny light bulb can be a great helper for physical and electrical experiment. Made of premium material for long time and durable use. It has a simple design, but very practical in use, giving you a good using experience. Also can be a good gift choice for your friends, they will like it. Features -Color:Transparent Color -Material:Glass, aluminum -Size:2.30X1.00X1.00cm/0.90X0.39X0.39in Voltage: 6V Socket: E10 - Mainly used for electrical experiments in primary schools and secondary schools with good results. - A great tool for learning physics and electrical experiments, as well as science DIY equipment for kids and elementary school students. - Can be equipped with switches, battery boxes, leads, etc. to build small lighting circuits. - It's lightweight and easy to carry, and students can take it outside to play with friends. - Outstanding workmanship, reasonable design, stable and practical, will bring you a good using experience.Package list: 50 x light bulbs Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!