Feature:Galvanized aluminum promises durability.High temperature resistance and low temperature resistance.LED lights directly demonstrate the process of converting thermal energy into electrical energy. Instructions:-The engine model on the horizontal position by hand toggle the flywheel to see if smooth, if there is a strong sense of raw astringent, check the connection rod is normal, whether the cylinder oil and dust, and if so, please use toilet paper to erase Not smooth. Toggle the flywheel feel pressure rebound within the cylinder body is a normal phenomenon, the cylinder is sealed.-The packing bag of alcohol lamp cotton wear into the metal cap lamp.-Please go to the pharmacy to buy 95% purity alcohol, anhydrous industrial alcohol better. Fill the alcohol lamp to less than two-thirds.-Alcohol lamp to the alcohol lamp, at the premise of ensuring safety, ignite the alcohol lamp about 2 minutes after the flywheel, until the flywheel automatic operation so far, the whole process of heating, hands may not touch. Description:Name:Stirling Engine ModelMaterial:quartz glass+galvanized aluminumColor:silverTemperature range:-30℃~700℃Size:180*87*80mm Note:-There will be the operation of steam,when steam too much time, the engine will stop working,inside and outside the needle often set aside to reduce friction-Do not rotate the nut too tightly, otherwise the glass is broken, if the piston is cracked,can be bonded with glue.-The alcohol lamp wick do not touch the glass, do not get too tight ring-Pulling the piston connecting rod can not force the front end, because the front end is easy to break Package Included:1 x Stirling Engine Model1x Alcohol Bottle1x Piston Tube