Specifications ,Number of LEDs: 21pcs ,Lux in 1m distance: 103Lux ,Lighting Time 100% Power: 170 minutes ,Lighting Time 50% Power: 340 minutes ,Life Time LED: 100000hr ,Angle of Illumination: 60° ,Colour Temperature without Filter - 6.5K ,Colour temperature transparent filter - 5800K ,Color temperature with yellow filter - 3200K ,Lumen - that. 110 ,Size - 50 (B) x 25 (H) x 17 (T) mm ,Weight incl. batteries: 18g ,Power: 4x AA batteries or with power adapter