KXZM WS2812B Individually Addressable 5V RGB LED Strip Light 3.3ft 144Pixels 5050 SMD Dream Color No-Waterproof IP33 White PCB LED Strips for DIY Projects

Description: IC type: WS2812B IC Color order: G R B?NOT RGB? Gray level: 256 View angle: 120° Input voltage: DC 5V Color: full color 24-bit FPCB board color: White Power: 18W/M Recommended power supply?DC5V 4A (20W) Standard Reel Length: 3.3ft/roll Led Qty: 144LED/M Operating Temperature: -20 ~ +40°C Length xWidthx Height: 5000mmx10mmx3mm Wave length(nm): Red,650nm ; Green,520nm ; Blue,460nm Waterproof level: IP33 No-waterproof Precautions: Using voltage DC5V, higher than 5V will destroy it. It is better to add DC5V voltage every 16.4FT, because the LEDs at the far end of the strip might be dimmer due to the added resistance and voltage drop that occurs as the current flows to that end of the strip Common problem: 1.Why the end of LED strip looks like red or yellow when you light up maximum brightness White Light ? A1: It is better to add DC5V voltage every 16.4FT, because the LEDs at the far end of the strip might be dimmer due to the added resistance and voltage drop that occurs as the current flows to that end of the strip. 2.Why do I light up a few LEDs ? A1: Please make sure you using the right power supply . For this LED strip , it is DC5V .Please don't use DC12V power supply for it. It will burn this LED strip. A2: The controller is defective . Please make sure the controller can work fine . 3.What are the functions of the two extra wires on two ends ,one is white ,one is red ? A1: They are using to connected the DC5V power supply when the LED strip out of voltage . So we also call them voltage adding wires . 4.Can I connect them in series when I want to control 4 reels of them ? A1: Yes , they can end to end connct many reels .