Specification: 

  ONLY For INDOOR USE

• 100% Brand new and high quality
• Widely used in Industrial automation， LED display， communications， etc.
• Protect: Shortage Protect， Overload Protect， Over Voltage Protect.
• Size:19.4cmX11cmX5cm
• Input Voltage: 110V/220V ±15% 50/60Hz
• Output Voltage: DC12V
• Output Current: 0~20.0A
• Shell Material: Metal case / Aluminum base.
• Working Temperature: 0℃~40℃
• Storage Temperature: -20℃~60℃
• Ambient Humidity: 0~95% Non-Condensation
• This Power Supply Unit "DOES NOT" come with installation instruction， wiring cable， on/off switch， or screws.
• Professional installation of qualified electrician is highly recommended.

How to calculate Support max LED Strip Length:
Assumption: Your LED Strip 60LEDs/m， and each LED 0.2W， then calculate max LED Strip Length: 0.2W/LED×60LEDs/m=12W/m，
240W(this listing)÷12W/m=20m， So， Support the LED Strip(60LEDs/m， 0.2W/LED) Length (Max)=20M.

  

Package included:    
1 x 12V 20A 240W Switching Power Supply