These lights will charges during day and it will automatically turn on at night and turn off during the day. It only needs 6-8 hours to be fully charged and can last for 8-10 hours working time. It comes with a light sensor solar chip. The price drops from $19.99 to $12.59 when you clip the 30% coupon on product page. Shipping is free for prime members or on orders over $25.

Clip the 30% coupon on product page