Material: Polyester 600D – second fabric layer inside entire backpack for reinforcement and durability
Dimensions: 46x32x20 cm
Powered by: 2 x CR2032 button batteries (included)
Features: INTEGRATED LED LIGHT for increased visibility and safety | Headphone exit | Reflective stripes | 2 large departments, 1 smaller department | Lap top department | Accessories organizer | Padded back with air circulation system | Padded shoulder straps | Waist straps | Chest straps with SAFETY WHISTLE | Side pockets | Easy zipper handler | Reinforced bottom 1680D Polyester
Why we use GREEN LED lights and not any other ?
The human eye sees color over wavelengths ranging roughly from 400 nanometers (violet) to 700 nanometers (red). Light from 400-700 nanometers is called visible light or the visible spectrum (see »Visible Spectrum Table«).
The human eye response is most sensitive in the green, peaking around 555nm (see »Eye Color Sensitivity« chart).
Conclusion: Green color is the most sensitive and visible color for the human eye and therefore the most suitable to use for the road users visibility and safety !