KL1.4LM(C): LED signal lamp (LED cap lamp, LED safety lamp, LED cordless headlamp) KL1.4LM(C): Technical Specifications:Charging voltage 5v Rated battery capacity 2.Ah Li-ion Rated voltage 3.7v Rated working current 180mA Lighting distance ≥50m Continuous discharging time ≥20hours Luminous flux ≥1200Lux Charging time 7hours Illumination 11 hours later not less than 800Lux Using life time ≥50,000 hours Weight 110g (including the battery) Application Mining emergency workshop , tunnel, marine operations , soldiers equipment etc.. The signal light made from three colour red yellow blue, only one colour flashing or three color flashing cycle,mainly used in mining underground for safety warning