How much energy do solar panels produce?
Solar energy is defined by the electrical power delivered via a solar panel in standard sunshine (1000 Watts/m2) and temperature (25°C) conditions; it is measured in Watt-peak (Wp)
1 panel delivers 30 Wp equivalent to the electrical power of 30W in the above mentioned conditions.
How many solar panels fit on one streetlight?
3 to 7 panels can be fitted depending on the height of the pole.
Consequently, a streetlight with 3 panels will produce 96 Wp, and 224 Wp with 7 panels
What is the luminous power of LEDs?
This power is 30W at full power (around 3 150 lumens)
The Straight range has a 30W single LED that can be doubled to reach 60W (around 6 300 lumens)
The Lighty, has an IP 65 LED which can reach 5 to 8 Watts.
Why use LEDs?
LEDs are more energy efficient and have a much longer lifespan, which significantly reduces maintenance costs. LEDs don’t emit UV rays and therefore don’t attract insects: cleaning costs are almost non-existent.
What does the protection rating IP 67 for streetlights mean?
This rating classifies the level of protection that the enclosure provides.
The 1st digit corresponds to the level of protection against the ingress of solid objects, the 2nd digit refers to the protection against the ingress of liquids
6 = Dust tight: No ingress of dust; complete protection against contact (highest rating)
7 = Immersion protection up to 1m: Ingress of water in harmful quantity shall not be possible when the enclosure is immersed in water under defined conditions of pressure and time (30 min up to 1 m of submersion). (Highest rating = 8 => continuous immersion)
What does the protection rating IK 10 mean for streetlights?
This rating classifies the resistance to mechanical impact: 10 is the highest rating and corresponds to a drop of a 5 kg object from a 40 cm height.
What is the battery autonomy?
The batteries are high-performance lithium batteries. They are less sensitive to extreme heat or cold compared to traditional batteries.
The batteries have autonomy of 100Ah (i.e. 1kWh).
Considering that the 30Watts LEDs use 3A, a streetlight theoretically has autonomy of 33 hours at full power; i.e. 3 nights without solar energy supply during the day.
Where are the batteries located?
The batteries are located inside the pole or buried in a watertight enclosure underground next to the pole in extreme conditions areas.
What is the life span of a Photolight streetlight?
Being made from aluminium the streetlights don’t rust
The lifespan of the LEDs varies from 30 000 to 50 000 hours; i.e. around 10 years
The batteries last at least 5 years (charged at full capacity)
What’s the warranty?
1 year warranty
Where are the streetlights manufactured?
They are manufactured in Grenoble, France
Do the Photolight streetlights comply with the current regulations?
Yes, they comply with the 3 following regulations:
- EN 13201 which defines lighting classes for road lighting (at full power and depending on streetlight layout)
- EN 61215 which determines the design of solar panels, qualification and type approval and lifespan
- EN 40 (CE marking) which defines wind resistance for streetlights