Check the listing for details. 0-30V 5A adjustable Lab DC power supply Bench Variable Programmable power Source. Condition: New. Listed at 55.99 USD. Features: High efficiency and sufficient power Low ripple, small size and light weight Voltage and current blue LED display, beautiful Stable voltage, limited current and simple operation Temperature controlled fan for heat dissipation, low noise and long service life The code potentiometer regulates the voltage and current. Application field: 1. Production line test. 2. Mobile phone and electrical maintenance. 3. Product aging. 4. Battery charging. 4. Laboratory, scientific research and teaching. 6. Other occasions requiring DC regulated power supply. Main technical parameters: Input voltage: AC 230V / 115V ± 10%; 50 / 60Hz. Output voltage stabilizing value: 0-30v Output constant current value: 0-5A Ripple voltage: VPP ≤ 1% Overall efficiency: ≥ 89%. Digital display: four LED Blue digital tube display. Display resolution: 00.01V/0.001A. Display accuracy: ± 0.5% + 3digits. Working temperature: (- 10 ～ 40) ℃. Product features: Net weight: 1.15kg, gross weight: 1.5kg, whole case: 8 sets / 12.5kg Machine size (mm): 90 (W) × 145 (H) × 190 (L) Package size (mm): 135 (W) × 195 (H) × 265 (L) Box size (mm): 275 (W) × 405 (H) × 550 (L) Attached accessories: power cord X1 instruction X1 warranty card certificate X1 output cord x1 shipping: we ship the item via SpeedPAK to US, Canada and Australia, usually the delivery time is about 10-20daysfor other countries, we'll ship it via registered air mail of Post, usually the delivery time is about 15-25 days. If you want express mail service, please contact us for extra postage in advance.