Supply And Installation For The Improvement Of The Lighting In The Parc Del Castell In The Municipality Of Castelldefels. Purely, It Is A Mixed Contract Regulated In Article 18 Of The Lcsp. The Services Included In The Contract Are Supply And Works, And These Are Directly Linked To Each Other And Maintain A Relationship Of Complementarity That Makes It Necessary To Consider And Treat Them As A Functional Unit Aimed At The Satisfaction Of The Supply And Installation Of Poles And Luminaires, And Subsequent Commissioning.