Specification: Components: Plastic casing, LED beads, button batteries, insulating sheet. Size: 1*1*1.5cm\0.39*0.39*0.59", Weight: 2.5g (each including 3 AG3 button batteries). Illumination method: Twist to activate the light. Power source: 3 AG3/LR41 button batteries, replaceable. Illumination duration: Approximately 3 hours of high brightness. LED bead colors available: White, Warm white Suitable for use in: Models, action figures, remote control models, toy DIY, for dollhouse, epoxy resin crafts, pet collars. Package include: 10*toy model light Notes: 1. Due to various factors such as monitor brightness and light brightness, the actual color of the product may be slightly different from the picture displayed on the website. 2. Please allow for slight manual measurement bias in the data.