JOI Heat Powered LED Lamp does not use batteries, solar or wall power it creates its own energy using the same thermoelectric technology as the Ecofan to transform the energy of a tea light candle, this provides enough energy to light up your night. It takes only minutes for the Joi to use the heat of the candle to turn into the heat into more than 18 times of the tea light. The light can be used outside on your patio, decking etc.. alternatively it can be also be used indoors
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