that melts at a point, instead of over a range)
* 60/40: melts between 183 - 190 C
* 50/50: melts between 183 - 215 C

For environmental reasons and the introduction of regulations such as the European RoHS (Restriction of Hazardous Substances Directive), lead-free solders are becoming more widely used. They are also suggested anywhere young children may come into contact with (since young children are likely to place things into their mouths), or for outdoor