I bought these lights per your recommendation to put on my golf cart. my golf cart has a usb port. what do i need to buy to plug this into the usb?

You bought the wrong thing. These are not usb powered and you’ll spend enough to buy 5 sets of usb powered lights trying to get them to be. These are for professional and hobbyist installations with addressable ic chips to perform a pattern, you’d need the control unit and power supply and app for phone or computer; the power these draw will also drain your cart’s battery much faster than a normal set of usb string lights. Return them.

I'm working on a larger project and will need roughly 2500 pixels. Can you reach out and let me know if you can help me with that quantity?

Sure we can send you the PI if you need , you can contact us support@btf-lighting.com

12vdc for longer run makes sense. but when using 12 vdc, is the data line 5vdc or does that also have to be bumped up to 12 vdc?

I have had several problems with the quality of this product. Please see my review. They send strips with LEDs that do not work. To answer your question though... No, the data line voltage is determined by the board or controller you are using. Some will output data at 5 volts and others at ~3 volts. If you keep the data line short (less than 12 inches), 3 volts data should be ok. I had a much longer run from my boards (esp8266 based node MCUs and wemos D1 minis) and needed to use a logic level shifter to boost the data line voltage to 5 volts. I believe 12 volts data would damage any LED strip.

can I do a 100 foot run with just power injection at the start and end of the run ?

If you don't light up full brightness white light ,yes ,it can . The LEDs at the far end of the strip might be dimmer because of the added resistance and voltage drop that occurs as the current flows to that end of the strip. This is a normal physical phenomenon, and all the LED strips cannot avoid this problem. The factors that affect brightness are： 1. Length. If your project is too long, the voltage drops. 2. Power supply. Make sure the power is enough for the project. 3. Lighting effect. The full white lighting effect will consume a lot of energy. When you Light up 1 color(red or green or blue or pure white) 0.1W/LED. Light up 2 colors (red+green) 0.2W/LED , Light up 3 colors (red+green+blue=mixed white) 0.3W/LED. 4. Brightness. The brighter the brightness, the more consumption. Solution： 1. Adding voltage every 5 meters (16.4ft). 2. Lower brightness 3. Enough power 4. Avoid the full white lighting effect.

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BTF-LIGHTING

Product ID: 134105081

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Details

Color
Black
Brand
BTF-LIGHTING
Indoor/Outdoor Usage
Outdoor
Special Feature
Waterproof
Light Source Type
LED
Power Source
Corded

🌈24-bit full RGB color & 256 brightness levels

💡50 individually addressable LEDs

💧IP68 waterproof for outdoor & underwater use

Description

🌈 Light up your world with precision and waterproof brilliance!

VIBRANT TRUE COLORS - Experience rich, 24-bit color depth with 256 brightness levels for flawless, eye-catching displays.
SEAMLESS INTEGRATION - Compatible with popular controllers like T-1000S and SP series for effortless programming and control.
PRECISION PIXEL CONTROL - Individually programmable LEDs let you craft stunning, custom animations that stand out in any setting.
BUILT TO BRAVE THE ELEMENTS - IP68-rated waterproof silicone coating ensures durability and performance rain or shine—even underwater.
FLEXIBLE CUSTOMIZABLE LENGTH - Cuttable pixel modules allow you to tailor the string length perfectly to your project without losing functionality.

The BTF-LIGHTING WS2811 LED Pixel String features 50 individually addressable 12mm round LEDs with full 24-bit RGB color and 256 brightness levels. Designed for both indoor and outdoor use, its IP68 waterproof rating and cuttable design offer unmatched flexibility and durability. Compatible with major programmable controllers, this 12V LED string is perfect for creating dynamic lighting displays, from advertising boards to immersive event atmospheres.

Specifications

Color	Black
Brand	BTF-LIGHTING
Indoor/Outdoor Usage	Outdoor
Special Feature	Waterproof
Light Source Type	LED
Power Source	Corded Electric
Light Color	RGB
Theme	Christmas, Indoor
Occasion	Christmas
Style	DC12V
Material	FPCB
Controller Type	program
Number of Light Sources	50
Voltage	12 Volts
Wattage	15.00
Item Weight	0.1 Kilograms
Number of Items	1
Control Method	Remote
Seasons	Christmas
Item Length	350 Centimeters
Manufacturer	BTF-LIGHTING Technology Co., Limited
Part Number	12MMWS281112V68B
Item Weight	3.52 ounces
Item model number	12MMWS281112V68B
Is Discontinued By Manufacturer	No
Special Features	Waterproof
Batteries Included?	Yes
Batteries Required?	No

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