Temperature range from 0°C to 10°C. Recommended iron temp.: 120°C. LF10X is made a little bit harder than the old LF10. Our test result shows that a slightly harder wax performs better in this area, especially noticeable when used alone. The adjusted hardness is also making the wax more durable than before. It’s a good wax for base prep wax, but also a great training wax. For racing we recommend to go with high fluoro wax in this temperature area, but with a powder on top LF10X can be used with a good result. The FC10X powder would then be the natural choice. The speed of the iron should be approx. 8-10 sec. on a skating or alpine ski. The wax can be re-heated after cooling to room temperature (10 min) for better durability. Important to have a good iron to get an efficient melting of the wax.