They constitute substantial improvements in comparison with traditional lights.

They have the advantages of :

1. In terms of service obtained:

a) The absence of a filament and therefore thermal inertia results in :

• better reading of the character of the light (the light goes on and off instantaneously)
• better recognition of the luminous impact by the introduction of faster rhythms.

b) The absence of a coloured filter means :

• stability of colour over time.

2. In terms of maintenance :

a) A longer lifespan : more than 10,000 hours for LEDs as against
2000 hours for long-life halogen lamps.

b) A reduction in proportional energy used : with equivalent
consumption, the effective intensity is 10 times greater for green
and red lights.

c) The light is less heavy, compact and resistant to vibration.

d) The ability to group together the battery, solar panels and the
light in a compact individual unit.