This is an excellent quality 12v 2A 24W can be used for many LED lights and other application. This has 5.5mm x 2.1mm DC plug output. 

It is recommended not to exceed 80% or 19w of AC adapter's capacity. Please calculate your load before connecting the power.

Specification:

Output Frequency: 50/60HZ 
Output Current: 2A 
Max power: 24w
DC plug output: 5.5mm x 2.1mm
Output Voltage: 12V 
Input Voltage: 100V-240V
Size: 4" x 2" x 1.25"
Weight: 4.3 oz
Indoor dry location only. 

Package content:

1pcs 12V DC 2A 24w Power supply