The John Lewis JLBIIH604 induction hob has four cooking zones, each with precise touch controls and 9 power levels for flexible and effective cooking. Induction technology works by creating a magnetic field between the hob and steel or iron pan. The heat is instant, easily controlled and energy efficient. A timer and key lock put you in complete control of your hob while the automatic switch-off is on-hand if the heat is accidentally left on. It also comes with a child proof lock for added peace of mind. A timer and key lock put you in complete control of your hob while the automatic switch-off is on-hand if the heat is accidentally left on. Surfaces are very easy to clean as the bevelled edge design prevents dirt traps, plus a childproof lock offers added peace of mind.