Oxford light curtains are KONE original light curtains. It's just that the brand is different. The commonly used models of 0735 light curtains are 1.8 meters. Non-standard lengths of 2 meters can be replaced with 0740 without any difference. 0735 light curtains with a length of 1.8 meters and 2 meters cannot be used in common. 0740 light curtains are all 2 meters!