SRT18-P SRT20-M SRT22-M 18.0W 20.0W 22.0W 5% 5% 5% 17.4V 17.4V 17.4V 1.03A 1.15A 1.26A 21.6V 21.6V 21.6V 1.13A 1.27A 1.39A -40℃to+85℃-40℃to+85℃-40℃to+85℃715V 715V 715V 8A 8A 8A Polycrystalline 156 156mm(6inch) 36=2 18PCS 540 340 23mm(21.3 13.4 0.9inch) 2.5Kg IP65rated 10PCS/CTN,555 320 355mm(21.8 12.6 14inch)