... power supply, 18W, 420mA, 7 years' experience, manufacturer supply with most competitive price. Model:BR-T8 (Isolated)Power:18wThe outputDC 30 - 40V,420mAAccuracy of the output ... current limiting,and automatic recoveryInsulation characteristicsthe input end and the output end: 3KVACWorking Temperature-30°C to +60°CAnti vibratility10- ... ) 12 in series and 24 in parallel Isolated LED drive power supply