<https://www.undercontrol.co.uk/industrial-elements/quartz-elements/quartz-elements-half-size/#webpage>
<http://schema.org/description>
"Quartz elements, medium wave, infrared elements are the same as the  full size version but with half the power output. Available for next day delivery."
<https://www.undercontrol.co.uk/industrial-heating-elements/quartz-elements/quartz-elements-half-size/>