http://www.hktdc.com/sourcing/company_product_detail.htm?companyid=1X001699&productid=808192&query=solar%2520cell%2520&entryPoint=2&locale=en
Solar-Powered Blind
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Product Specifications:
This solar-powered blind comes in double layers to filter direct sunlight. It can be controlled easily by the featured intelligent automation, which does not require electricity to operate. This solar-powered blind reduces 2°C of indoor temperature.
* Saves up to 20% on electricity bill.
* Reliable operation.
* Available in 2 different shapes.
Kuidas saab elektrit tasuta ? https://elektritsaabtasuta.blogspot.com/2016/11/kuidas-saab-elektrit-tasuta.html Isegi lapsed meisterdavad endile elektrituulikuid ja päikesepaneele sest peale tasuvusaega annavad nood elektrit ja kütet tasuta jpms: http://elektritsaabtasuta.blogspot.ie/2012/06/polve-peal-meisterdatud-elektrituulikud.html
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