405nm Violet / Blue Laser Light Source Beam Light 1mW Lazer Power 405P-40-BL
Wavelength：405nm. Battery：2x AAA battery(battery's negative to the spring). Working Temperature：＋15 ℃~＋35 ℃. Duty Cycle 45 seconds ON, 15 seconds OFF. Material and Color：Stainless steel.