Description If you are looking for professional and affordable mini light bulb, then your research is over here. Thatand 39 s because our product can satisfy your need. It makes easier to use in physical electricity experiment. It will be the good choice for you. Features - Color: As shown. - Material: Glass. - Size:2.50X1.30X1.30 cm or 0.98X0.51X0.51 inch. - Rated voltage: 1.5V. - Rated Current: 0.3A. -Rated Power: 0.45W. - Screw base: E10. - They are mainly used in electrical experiments of middle and primary school, excellent and useful. - Great instrument for learning physical and electrical experiments, as well as the science DIY equipment for children and primary school students. - Can be equipped with switch, battery box, lead wire etc. to build small lighting circuit. - It is lightweight for carrying easily, which the students can bring it outside to play with their friends. - It is manufactured with professional technology to ensure the good quality of the product and can work for a long time.Packing list: 50 x small bulbs Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.