Stainless steel IP68 Underwater Stainless steel Junction boxStainless steel 304WaterproofIP 68JXH-85D.85 x H.40 mmFit for our Connetion joint No. S, A, B (Max 4 Pcs)JXH-115D.115 x H.55 mmFit for our Connetion joint No. S, A, B,C (Max 6 Pcs)JXH-145D.145 x H.65 mmFit for our Connetion joint No. S, A, B,C, D (Max 12 Pcs) Junction Box