Product: ALITOVE 5V 8A 40W AC to DC Adapter Power Supply Converter Transformer 5.5x2.1mm Plug AC 100V~240V Input for WS2812B WS2811 SK6812 LED Pixel Strip Light CCTV Camera Security System
Brand: ALITOVE
Color: 8A Black
Parameter
 100% Brand New
 Input: 100~240V AC, 50/60Hz
 Output voltage: 5V DC 
 Output current: up to 8 Amps
 Working Temperature: 0~40℃
 Storage Temperature: -20~60℃
 Ambient Humidity: 0~95% Non-Condensation
 Safety Compliance: CCC/CE
 AC Cable length: about 47.24in (120cm)
 DC Cable length: about 39.37in (100cm)
 Body size: 4.9in x 2.16in x 1.18in (12.5cm x 5.5 cm x 3cm) 
 Weight: 0.7 lb / 320g
 
Kindly note
 1) The power supply comes with a female DC connector. So you can easily screw wires on it without soldering. 
 2) Please don’t use it outdoor. It is not waterproof. 
 
Statement:
 Some customers complain that output power of 5V power supply is insufficient. After a series of tests, we find the reason is wrong test method, not quality issue.
 Because of low voltage and large current, 5V power supply requires the test wire to be thick and short enough, so as to reduce the power loss as much as possible.
 Compared with the 12V and 24V power supply, if the same current is to be output, 5V power supply needs a thicker output wire.
 For example, if the 12V 20A power supply is tested by 11 AWG test wire,no current and voltage drop, no power loss. 
 But when we test 5V 20A power supply, in order to get sufficient 5V voltage and 20A current, 6 AWG test wire is required. 
 If we use 11 AWG test wire or 6 AWG test wire is too long, the current and voltage will drop much. This is the characteristic of the current transmission of 5V power supply. 
 The lower the output voltage is, the wider the transmission channel should be. If you need test report, please feel free to contact us.
 
Package:
 1x 5V 8A power supply adapter 
 1x DC female connector

Input: 100V-240V 50/60Hz; Output: 5V DC up to 8 Amps; Output adaptor jack size: 5.5mm x 2.1mm
It comes with a female DC connector for screwing wires onto it. You can easily connect wires on it without soldering.
Safety features: Automatic overload cut-off, over Voltage cut-off, automatic thermal cut-off, short circuit protection.
Enough 40W output power and 5V stable output voltage will protect your electronic products from destruction.
It is perfect for all 5V projects, such as WS2811 2801 WS2812B APA102 SK6812 LED Strip Pixel light, CCTV Camera, Security System, etc.

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