Negative DC8V Voltage Regulator Module. Based on 7908 Regulator IC Design, AC or DC Input, DC Output. Complete Series of Protections (IC Function), Current Limiting, Thermal Shutdown and SOA Control. With Protection Diodes Circuit. This item has been assembled, and electrical test passed. FR-4 fiber glass PCB. HQ terminal blocks, easy connection wires. 400V 2Amp Bridge Rectifier 2W04. 2x 1000uF/35V YXF 105C long life and low impedance electrolytic capacitors. metal film capacitor, conducive to filtering high-frequency noise. output voltage LED indicator. DC input -11 to -32Vdc, or AC input 8.9 to 23.5Vac Output Voltage -8Vdc Maximum Current 1 Amp PCB Size: 50 x 50mm / 1.97 x 1.97 inch PCB Thickness : 1.6mm / 0.063 inch Module Size(W x L x H): 50 x 50 x 38mm / 1.97 x 1.97 x 1.5 inch