These lights are constructed of durable plastic that withstands most weather conditions and has a rust-free warranty. The glass lens emits a crackle effect that enhances the look of your lawn and garden. It has a dusk-to-dawn feature that turns off in the morning and turns on at night to save battery power. The price drops from $19.99 to $4.98. Free Shipping over $35 or it adds $5.99