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Panneau solaire usage
Source google image: https://ae01.alicdn.com/kf/HTB1PEzzSpXXXXb.aXXXq6xXFXXXS/Panel-Solar-12V-100W-5-Pcs-Lot-Panneau-Solaire-500W-Solar-Battery-Charger-Solar-Tuinverlichting-Marine.jpg_640x640.jpg