Ringdans Ester Wool Socks fordad26 Lighting performance as defined by Colour:Blue Silver Lighting performance as defined by the ANSI PLATO FL 1 protocol Lighting Technology Lighting Color Lighting Levels Brightness Distance Burn Time Reserve Lighting REACTIVE LIGHTING® White Max Burn Time 15 to 250 lm 70 m 10 to 64 h 10 lm for 2 h Standard 30 to 550 lm 100 m 5 to 40 h Max Power 50 to 1500 lm 200 m 2 to 24 h Standard Lighting Max Burn Time 10 lm 10 m 80 h Standard 250 lm 70 m 5 h Max Power 900 lm 140 m 2 h Rear Red Light Continuous 2 lm 2 and fold away for transport grandparents Size UK Euro Small 2 4 34 37 Medium 5 8 38–41 Large 9 11 42 45