Ninth-City 240W 110-220V to 12V 20A Voltage Transformer Switching Power Supply Driver Adapter For LED Strip Light

Working Temperature: 0¡æ~40¡æ.
Storage Temperature: -20¡æ~60¡æ.
Ambient Humidity: 0~95% Non-Condensation.
Weight: 734g.
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¡Á60LEDs/m=12W/m, 240W(this listing)¡Â12W/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