Solder Iron Tip Cleaning Sponge smd led This is a good quality

This is a good quality drill chuck set

Frequency Range 47~63Hz

check the colour of the wires and their respective polarities

resistive load <8A

Power supply voltage: DC2

Solder Iron Tip Cleaning Sponge smd led This is a good qualityThis is a high quality sponge made specifically for cleaning soldering iron tips that can quickly clean the tip surface of the oxide while causing no harm to the tip of the alloy layer. To avoid oxidation of the soldering iron head, avoid overheating, remove solder residue, and keep the PCB board clean. Use this sponge to clean your soldering iron tip to extend its life. This sponge swells up when soaked in water and can hold water for a long time.