DC Bench Power Supply Variable, 3-Digital LED Display 30V 10A Switching Power Supply with Free Alligator Clip US Power Cord for Lab Equipment, DIY Tool, Repair

NaviTech DC Power Supply Variable is small-sized and lightweight, features high accuracy, reliability. It is a great tool for scientific research, product development, etc. 
NOTICE: 

This power supply can not switch between ac and dc. 
To avoid burning out the dc power supply, please switch the input to 110V first!
Do not operate in humid environment
Do not operate in flammable and explosive environment
Keep the product surface clean and dry
Operating conditions:
Dual Input voltage: AC 110V±10% , 60Hz
Operating environment:  32 – 104°F (0 – 40°C), and humidity: ≤80% 
Storage environment: temperature: 14°F-158°F(-10°C~70°C), and humidity: ≤80%

Parameters:

Model :NP3010
Input voltage :110V/220VAC±10%  Switchable
Output: DC 0~30V,0~10A
Display resolution: voltage: 0.1V, current 0.01A
Load regulation: ≤0.3%+5mV
Ripple&Noise: ≤80mV
Altitude:≤2000m
Pollution Degree: 2
Dimensions: 226(L) *82(W) *138 (H) mm
Net weight: 1.5kg(3.3lb)

What You Get:

1x DC Power supply host
1x Output power cord
1x US Power Cord 
1x User Manual

FAQs:Q: What’s Constant Voltage (CV)&Contant Current (CC)?A: When you use a power supply you usually set the desired voltage and the maximum current. When you connect the load two things can happen:(1)The load requires more current than the maximum you set.(2)The load requires at most the maximum current you set.In the first case the PSU become a current source: the current is limited to what you set and voltage drops accordingly, that’s CC for you. In the second case what is costant is the voltage, so that’s CV.