TREBOONA.com

Chemical Energy

If the chemical energy of a system decreases during a chemical reaction, it is transferred to the surroundings in some form of energy. Often this ends up as heat, but in the case of our dynamo / windup torches the chemical energy used by your arm to crank the handle of a torch is ultimately also transformed into electromagnetic energy in the form of visible light.

Solar, Windup, Dynamo, and Faraday Powered LED Torches and Gadgets

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  • Returns : If after ordering an item you are not satisfied a refund may be obtained. To qualify, an item must be returned to us within ten days of the original dispatch date, be free from damage and complete with original packaging. No refund will be issued for partially complete items or damage sustained due to misuse. Your refund will comprise the original sale price excluding any postage and packing costs. Please obtain proof of posting. No liability will be accepted for returns lost in the post.

  • Faulty Goods : Either a refund or a replacement will be offered against items that develop a fault within 90 days of the dispatch date. Faulty items must be returned to us complete with packaging prior to the issue of a replacement or a refund. The refund will include the face value of the return postage costs.

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