(LED indicator size: 102mm x 27mm x 22mm/4.02 "" x 1.06 "" x 1.06 ""). Small and light, plug and play, simple and easy to use. Compatible battery: 18650/18500/18350/16650/16340/14650/14500/10440/. Due to the difference in light and screen settings, the color of the product may be different from the picture.