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Panneau solaire 20v
Source google image: https://ae01.alicdn.com/kf/HTB1JS6SKhWYBuNjy1zkq6xGGpXaM/Panneau-Solaire-20v-250w-4PCs-Panel-Solar-1000w-Solar-Home-System-1KW-Off-On-Grid-System.jpg_q50.jpg