I want to run the led around the whole room, so i need about 65ft, i want it to have a chasing pattern, what do i do, what parts do i need to buy?

First thing I would do is calculate how many LEDs are in your 65 feet length and multiple that number by .06 to establish the maximum current required for your power source. Next do you want to program the lights yourself or do you want pre written selectable patterns? Programmable is hardest method and I have no experience with any of them. Selectable patterns are usually written with a couple of hundred patterns to choose from. I've had great success withhttps://smile.amazon.com/dp/B07FDW1VZB/ref=cm_sw_r_cp_apa_glt_fabc_WJZCRHYWHS60F9Q7377T Your power supply can be from five (5) volts to twenty four (24) volts and there will not be a need to buy a separate power supply for your lights and controller. Best of luck on your project.

What are the 2 loose wires for? Are they just a secondary conection for power?

From a google search I found this image( https://a.pololu-files.com/picture/0J4995.1200.jpg ) which shows the Arduino using signal and ground on the 3-wire connector and external power supply connected to the two "loose wires". So I would think that for a short section/small number of LEDs it could be powered directly from the 3-wire connections. But if a long string of LEDs is going to be used, lots of current/power is needed and connecting to a beefy power supply would be requires so the loose wires can be used for that.

I want to run 4 -16.4 feet strips together , can i use the bluetooth sp611e sync music controller instead of the sp601e controller ????

there are two output , each output port can control max 600LED

I bought a ws2812 led strip but what else do i need to use it?

At the very least you need a +5V DC power supply and a data signal. That could be from a Raspberry Pi or an Arduino. There are tons of tutorials on the web on how to drive a WS2812.

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WS2812B IC RGB LED Strip,UL Listed,DC5V 3.28FT 100LED IP30

Product ID: 100944765

Details

Brand
BTF-LIGHTING
Color
Black Pcb Ip30
Indoor/Outdoor Usage
Indoor
Light Color
Multicolor
Light Source Type
LED
Occasion
Christmas New

💡100 ultra-bright LEDs

🔗Individually addressable SPI control

🛡️UL-certified safety & quality

S$27

Duties & taxes included

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Description

✨ Light up your space like a pro — because ordinary just won’t do! 💫

PIXEL PERFECT CONTROL - Individually programmable LEDs with 24-bit color depth and 256 brightness levels for flawless dynamic effects.
PLUG PLAY FLEXIBILITY - Pre-installed 3-pin connectors and cuttable design let you customize length and daisy-chain effortlessly.
PURE GOLD WIRE BRILLIANCE - Experience ultra-stable, vibrant lighting with premium pure gold wiring—less decay, longer lifespan.
CERTIFIED SAFETY ASSURANCE - UL-listed components and 3M adhesive tape ensure secure, reliable installation in any professional setting.
VERSATILE SMART COMPATIBILITY - Seamlessly integrates with popular DIY controllers and apps like ESP32, WLED, and Tuya for ultimate creative freedom.

The BTF-LIGHTING WS2812B RGB LED Strip features 100 individually addressable 5050 SMD LEDs wired with pure gold for superior brightness and longevity. UL-certified for safety, this 3.28ft flexible strip supports 24-bit color and 256 brightness levels, compatible with multiple smart controllers and apps. Ideal for professional-grade DIY lighting projects, commercial displays, and festive décor, it offers easy installation with pre-installed connectors and 3M adhesive tape.

Specifications

ASIN	B07BTTY4FL
Additional Features	DIY Project, Dream color, Individually Addressable, Pure Gold Wire, WS2812B RGB IC
Best Sellers Rank	#24,938 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #232 in LED Strip Lights
Brand	BTF-LIGHTING
Brand Name	BTF-LIGHTING
Color	Black Pcb Ip30
Connectivity Protocol	Wi-Fi
Connectivity Technology	Wi-Fi
Control Method	App
Controller Type	App Control
Customer Reviews	4.6 out of 5 stars 2,623 Reviews
Form Factor	Strip Lights
Included Components	1x WS2812 LED Strip Light
Indoor Outdoor Usage	Indoor
Indoor/Outdoor Usage	Indoor
Ingress Protection Code Rating	IP30
Item Dimensions	5.91 x 3.94 x 0.59 inches
Item Highlight	Pure Gold Wires Black PCB Individually Addressable 5050SMD for DIY Chasing Color Project,3M Tape(No Adapter or Controller)
Item Length	38.4 inches
Item Weight	1.28 ounces
Light Color	Multicolor
Light Source Type	LED
Manufacturer	BTF-LIGHTING Technology Co., Limited
Manufacturer Part Number	WS2812B1M100LB30
Manufacturer Warranty Description	1 year manufacturer.
Material Type	Silicone Rubber
Model Number	WS2812B1M100LB30
Number of Items	1
Number of Light Sources	100
Occasion	Christmas, Halloween, New Year
Power Source	Corded Electric
Product Style	Modern
Seasons	Christmas
Special Feature	DIY Project, Dream color, Individually Addressable, Pure Gold Wire, WS2812B RGB IC
Theme	Indoor LED Strip Lighting
Unit Count	3.3 Feet
Voltage	5 volts
Water Resistance Level	Not Water Resistant
Wattage	30 watts
Wireless Communication Technology	Wi-Fi
hanging_pattern_layout	Linear

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