1. The Defendants shall jointly and severally pay to the Plaintiff KRW 20,000,000 and the interest rate thereon from August 12, 2015 to the date of full payment.

If Gap evidence Nos. 1 and 2 shows the overall purport of the pleadings, while the plaintiff supplied lighting equipment to the scene of the construction of Jeju-gu D Urban Housing at the defendant's request and was not paid the price by the defendant, on September 11, 2014, the price of the supply of lighting equipment supplied by the plaintiff to the defendant between the defendant and the defendant shall be adjusted to KRW 20 million, but the contract to receive KRW 10 million from the defendant until September 30, 2014 can be acknowledged as having been concluded, respectively.

Therefore, the defendant is obligated to pay to the plaintiff delay damages calculated at the rate of 20% per annum from August 12, 2015 to the day of full payment, as requested by the plaintiff, to the day of delivery of a copy of the claim of this case and the written application for modification of the cause of the claim of this case, as requested by the plaintiff.

As to this, the defendant does not have the price for goods to be paid to the plaintiff.

Although it is alleged to the effect that the Plaintiff did not cause any defect in the lighting fixture supplied by the Plaintiff, there is no evidence to acknowledge it.

Therefore, the plaintiff's claim is justified and it is so decided as per Disposition.