With function of cool / heat liquid or in point to point Processing capacity 50L DC switching. Exchange material: Aluminum switch. The pagoda Specifications: 9 x 13mm (hoses using an inner diameter of 7.3) Built-in probe: NTC10K-B3950 Input voltage: 24V Input power: Max. 500W Density padding: Polyurethane prepolymer. Note: 1: Must use water cycle to cooling and water heat dissipation temperature must lower than 40'C or will affect cooling effect. 2: Cooling output end must keep warm to avoid condensate water due to temperature difference 3: With overheat protection of system to prolong life. User Manual: http://m5.img.dxcdn.com/CDDriver/CD/sku.343147.doc