Includes multi light transformer, photo cell and timer. Enhance beauty of any water garden. Photo cell activates when it gets dark. Low voltage transformer. Adjustable digital timer will work with the photo cell. Outdoor transformer: Up to 200 watts only. Made from plastic. 9 in. L x 5 in. W x 5 in. H (14 lbs.). Assembly Instruction . For all ponds and indoor-outdoor garden applications or with other items. Can be used with all Alpine pond and garden lights or any other garden products, which needs transformers. Do not exceed 200 watts in any combination.