Zelv solar panel lifter can upload max 300kgs i.e. 10pcs 550W solar panels to 7m-30m height building’ roof with fast speed, it need one worker use remote control to lifter to go up and down with fast speed. It saved a lot of time and manpower, greatly improved the efficiency of solar panel installation. Lifters are ready for shipment in stocks. Most importantly, it’s affordable, we have promotion in Sep 2025 . Want to know more details, please inquiry to us. Email: [email protected] Whatsapp: 0