Dimensions: φ(23-29)*160MM
Class: IIIB
Wavelength: 532nm
Output Power: 250mW
Output Mode: Constant Wave
Battery: 18650(3.7V) x 1pcs
Operation Temperature (℃)   15℃～＋30℃
Storage Temperature (℃) -10℃～＋40℃
Warm-up Time (seconds) : 1 second

Safety key at the tail to turn on or turn off the laser pointer (3th picture),safety cover at head to control laser beam(2th picture).