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Panneau solaire 3w 6v
Source google image: https://ae01.alicdn.com/kf/HTB1kWlTuKGSBuNjSspbq6AiipXax/1x-6V-6W-9V-3W-Solar-Panel-DIY-System-Mini-Portable-Panneau-Solaire-Energy-Board-for.jpg