Since 1999, the safety standard of Europe has changed, requiring the distance between the wires in a 3-wire ropelight at 2.5mm. Hence the development of our 2-Wire Chasing Flexilight where it only needs 2 wires to comply with European standards functioning like a 3-wire Flexilight. With the features of less wire-to-wire connection, higher flexibility (due to the 2-wire structure), and minimum diameter, it is definitely the most reliable chasing ropelight in the market.