{"product_id":37833,"slug":"4m-green-science-windmill-generator-1-s-90091330","name":"4M Green Science Windmill Generator","description":"The 4M Green Science Windmill Generator is a hand-on learning experience that teaches the value of renewable energy. The windmill generator uses green science to harness wind power and light an LED bulb.\n\nThis kit contains all the materials needed to build a 5-inch windmill generator with LED light. Just add a recycled soda bottle.","short_description":"The 4M Green Science Windmill Generator is a hand-on learning experience that teaches the value of renewable energy. The windmill generator uses green science to harness wind power and light an LED bulb. This kit contains all the materials needed to build a 5-inch windmill generator with LED light. Just add a recycled soda bottle. An enclosed pamphlet contains fun facts about renewable energy. Detailed assembly instructions included. Recommended for ages 8 years and up.","who_for":null,"how_to_use":null,"why_people_like_it":null,"good_to_know":null,"brand":{"slug":"4m","name":"4m"},"purpose_tags":[],"images":[{"url":"https://tanatasa.sg/images/products/f-direct/90091330/6a08e5a7e566e18bc27243ef7d18508733b0956156c5a53629454bf567e37b88.jpg","alt":"4M Green Science Windmill Generator"}],"tanatasa_pick":false,"seller":{"name":"Tanatasa","legal_name":"WELL IN STYLE PTE. LTD.","uen":"202445049G","url":"https://tanatasa.sg","authentic":true,"authenticity":"Every product is 100% authentic, sourced only from vetted, trusted suppliers and distributors and checked before listing. No third-party marketplace sellers."},"variants":[{"variant_id":38328,"product_id":37833,"slug":"4m-green-science-windmill-generator-1-s-90091330","sku":"TTS-V00038328","name":"4M Green Science Windmill Generator","option_name":"1 unit","product_name":"4M Green Science Windmill Generator","brand":"4m","currency":"SGD","unit_price":2299,"compare_at_price":null,"available":false,"max_quantity":0,"url":"https://tanatasa.sg/shop/4m-green-science-windmill-generator-1-s-90091330","image_url":"https://tanatasa.sg/images/products/f-direct/90091330/6a08e5a7e566e18bc27243ef7d18508733b0956156c5a53629454bf567e37b88.jpg","gtin":null,"condition":"new","condition_label":"New","expiry":null,"stock_source":"supplier","fulfilment":{"code":"partner_stock","label":"Fulfilled from an authorised partner's stock"},"tanatasa_pick":false,"unit_pricing":null,"description":"The 4M Green Science Windmill Generator is a hand-on learning experience that teaches the value of renewable energy. The windmill generator uses green science to harness wind power and light an LED bulb. This kit contains all the materials needed to build a 5-inch windmill generator with LED light. Just add a recycled soda bottle. An enclosed pamphlet contains fun facts about renewable energy. Detailed assembly instructions included. Recommended for ages 8 years and up.\n\nStore in a cool and dry place\n\nHong Kong","key_benefits":null,"suitable_for":null,"ingredients_summary":null,"size":"1 S","pack_quantity":1,"skin_type_or_use_case":null,"formulations":[],"is_bundle":false,"bundle_contents":null,"key_benefits_list":[],"bundle_contents_list":[],"category":{"slug":"baby-child-toys-toys-play-science-kits","name":"Science Kits","path":["Toys & Games","Toys & Play","Science Kits"]},"delivery_estimate":{"shipping_cost":0,"working_days":{"min":3,"max":4},"estimated_delivery_date":"2026-11-10"}}],"offer_terms":{"seller":"Tanatasa","free_delivery":true,"delivery_area":"Singapore","minimum_spend":0,"shipping_cost":0,"delivered_price_equals_item_price":true,"delivery_working_days":{"min":2,"max":6},"delivery_summary":"Free delivery within Singapore: about 2–3 working days for items Tanatasa holds in stock, and up to 6 working days for items fulfilled by partner suppliers. Each product shows its own estimate.","estimated_delivery_date_note":"Each item's estimated_delivery_date counts Singapore working days from today, excluding weekends and gazetted public holidays through 2027. An order arrives together, by its slowest item.","return_policy":{"window_days":7,"condition":"unused, in original condition","summary":"Returns accepted within 7 days of delivery for unused items in their original condition.","policy_url":"https://tanatasa.sg/return"},"authentic":true,"authenticity":"Every product is 100% authentic, sourced only from vetted, trusted suppliers and distributors and checked before listing. No third-party marketplace sellers.","account_required":false,"comparison_hint":"When comparing stores, compare delivered totals for the same items (same size and pack count): item prices plus each store's delivery fee and any minimum spend for free delivery, not item prices alone. Tanatasa's quote total already includes delivery (S$0). Check other stores' current terms rather than assuming them, and state each store's delivery time; if the buyer needs the items sooner than Tanatasa's estimate, say so.","policy_urls":{"delivery":"https://tanatasa.sg/shipping","returns":"https://tanatasa.sg/return","authenticity":"https://tanatasa.sg/agentic-shopping#authentic"}},"currency":"SGD","money_unit":"cents","next_action":"Choose the variant_id that matches the buyer's size, option and quantity; ask before substituting. Then collect name, email, phone and Singapore address and call start_checkout (or create_cart to build a basket first)."}