Why choose Alto ?

Discreet architectural design

With its minimalist aluminum body, ALTO blends seamlessly into high-end landscaped or urban environments.

Reliable off-grid lighting

Thanks to an oversized solar panel, an MPPT controller, and a high-capacity battery, ALTO delivers outstanding autonomy.

Easy installation

No trenching, no cabling: ALTO installs in just minutes, cutting down both installation time and costs.

Built to last

Made from corrosion-resistant aluminum, ALTO is ideal for humid or coastal areas. 5-year warranty, estimated lifespan of 10 years.

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    Park and recreation Residential area Path and crosswalk Path and crosswalk Park and recreation

    Alto is an all-in-one architectural solar bollard, designed to combine energy performance, clean design, and seamless urban integration. Its extruded aluminum body and cast top ensure exceptional durability, even in demanding environments. Equipped with two high-efficiency monocrystalline solar panels and a LiFePO₄ battery, it recharges quickly and delivers reliable, autonomous lighting for up to three consecutive nights. Compact, discreet, and easy to install, Alto meets the needs of municipalities and planners seeking a sustainable lighting solution with no grid connection required.

    Borne solaire architecturale Alto

    Specifications Alto

    Lighting
    Lighting power
    Up to 1,000 lumens
    Power
    10 W
    Lighting efficiency
    Up to 100 lm/W (4000K)
    Color temperature
    3000 K & 4000 K
    Lifespan
    Over 75,000 hours (L90B10)
    Photovoltaic panels
    Technology
    Photovoltaic modules (Monocrystalline silicon)
    Power
    2 x 22 Wc / 18 Vdc
    Dimensions
    650 x 193 x 5 mm (25.6 x 7.6 x 0.2 in)
    Lifespan
    > 25 years to 80 % of initial power
    Battery LiFePO4
    Capacity
    154 Wh / 3,2 V – 48 Ah
    Operating temperature range
    -20 °C to +70 °C
    Autonomy
    3 nights
    Lifespan
    2000 cycles (≈10 years)
    For any product equipped with an industrial battery >2 kWh, regulatory data is available upon request at marketing@sunna-design.fr, in accordance with Regulation (EU) 2023/1542
    General
    Housing material
    Aluminum die casting cover, extruded aluminum body
    Paint and finishes
    Polyester powder paint coating. Resistant to corrosion.
    Dimensions
    1020 x 200 x 72 mm (40.16 x 7.87 x 2.83 in)
    Weight
    7,2 kg (15.9 lb)
    Height
    1,02 m (3’4’’)

    Our Lighting Projects

    Want to estimate your project or confirm its feasibility?

    Bordeaux vu du haut du pont saint jean

    Solar Architectural Lighting on Bordeaux’s Pont Saint-Jean

    In Bordeaux, the Pont Saint-Jean is stepping into a new era with a tailor-made solar lighting solution by Sunna Design. This flagship project, part of the ambitious Euratlantique development program, embodies the blend of sustainable innovation and architectural heritage preservation. The solar lighting installed provides a contemporary illumination that highlights the bridge’s design while […]

    Learn more All our case studies
    St Llorenç d'Hortons chemin de nuit éclairé avec les iSSL+

    In Sant Llorenç, the iSSL+ Lights Up a Path—No Cables, No Digging Needed

    In Sant Llorenç d’Hortons, a path connecting the residential area to an industrial hub was left in darkness. Used daily by workers and residents, it posed a safety concern. The municipality chose to address this by installing iSSL+ solar streetlights. A fully autonomous solution ideally suited for this natural setting. Path and […]

    Learn more All our case studies
    éclairage solaire sur l'île de Vancouver - Port Alberni

    Quay to Quay: A Solar-Lit Pathway for a Connected City in Canada

    Port Alberni, located on Vancouver Island, is undergoing a major transformation. The city, known for its stunning natural heritage, has launched an ambitious project to modernize its infrastructure while promoting active and sustainable mobility. As part of this initiative, the municipality chose to illuminate its brand-new 4 km Quay to Quay pathway with 56 […]

    Learn more All our case studies
      Installateur qui pose un panneau solaire iSSL+

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