Please note: The positive and negative poles must not be wrongly connected, as this will cause the equipment to not work .

Input voltage: AC 120V (100-240V) 50/60Hz.
Output voltage: DC 24V .
Output current: 1A.
Output power: 24W.
Cord Length: about 300cm (about 10ft).
Output DC interface specification: 5.5x2.5 2.1mm (outer diameter 5.5mm, inner diameter 2.5 / 2.1mm).
Output polarity: inner positive +, outer negative -.
Output ripple noise: 90mV.

Input: AC100-240V, 50-60Hz. Universal AC Input, can be used worldwide.Output: DC 24V 1A 24W(Max.). Ouput current is 1A max. means that less than 1000mA can be used, such as 24v 1A 0.8A 0.5A etc.
10ft extra long power cord. Extra long extension cable 3m/10ft to reach what you want.Don't need Re-buy another additional cable.
24V1A Power Adapter DC plug connector external diameter is 5.5mm, internal diameter is 2.1 2.5mm. the polarity: Center is Center is Positive(+), Outside is Negative(-).
It is perfect for 24V devices less than 24W, such as routers, surveillance industry, CCTV , CD player, portable game machines, as routers, modems, office electronic devices, and other industrial applications.
Reliable & Secure: Automatically short-circuit cut-off, over temperature cut-off, over voltage cut-off，under-voltage protection and over-current cut-off. 
Attention： (1) We recommend less than 80% of full load and not running at overload! This is a 24v1a adapter. It is recommended to use it for devices below 0.8A( under 19w),otherwise it may damage your device.( 2）Before purchasing, please carefully check if the required plug size is :5.5x2.5mm/5.5x2.1mm.olarity: inner positive +, outer negative -. (3）This product cannot charge the battery. The product is a DC 24V power supply. It works by powering the device. Not with laptops, massagers, vacuum cleaners, cuffs.