Solar traffic light / solar stud light / solar warning light Solar panel power: polycrystalline or monoscrystalline 2V/120mA Battery: 1.2V 1300mA NI-MH Shell: PC/ aluminium alloy with resistant pressure and anti abrasive LED: yellow ultra bright light LED quantity: 2/4/6 grains, single-sided/double-sided Continual work time: continual work for 4 days under the condition of normal light charge, 20 days maximum duration during cloudy days.