This product is T12 iron DIY Kit, not , you need to prepare a power supply and assemble the parts together by yourself. If you are not good at DIY, or if you know little about Electricity, please do not buy this kits. please make sure the positive and negative anodes connection were all right before testing. Wrong connection was bound to a red-iron situation. if it's happened,please check PCB stent and aviation plug carefully, please conpared your connection with the datail steps and try to interchange the positive and negative wire,the machine will be OK. The colors of accessories may be different from batch to batch, which does not affect. Material: plastic+metal Color: as shown Package Contents: 1 x T12 iron DIY Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.