120m
36V / 48V LONG-RUN LED STRIP
36V/48V Long-Run Constant-Current LED Strip Manufacturer
Xmart Lighting supports long-run LED strip programs for architectural, commercial and temporary lighting projects where fewer power-feed points may simplify installation. Maximum run length, electrical performance and brightness variation are confirmed by model, load, installation conditions and power-feed method.
- 50m @ 48V, 30m @ 36V, 20m @ 24V
- Stable current, same brightness from start to end
- Single color, Tunable White, RGB, RGBW, RGBTW optional
- IP65 / IP67 options available | CRI>90 & 3-step MacAdam
Dual Factory for Diversity
100%
Brightness Consistency
UL, ETL, CE
CB, RoHS
CB, RoHS
Global Certifications
OEM/ODM
Full Customization
UL / CE Certified
Vietnam Manufacturing
Advanced Linear Lighting Innovation
How Long Can a 36V or 48V LED Strip Run From One Power Feed?
There is no universal maximum run length for every 36V or 48V LED strip. The permitted distance depends on the exact circuit design, power per meter, PCB resistance, constant-current regulator operating range, cable size, ambient temperature, IP construction and acceptable end-of-run brightness variation.
Compared with a similar lower-voltage design, a higher DC voltage can reduce operating current and conductor losses. Constant-current regulation may help manage current along the strip, but it does not eliminate voltage drop or guarantee identical brightness at every point.
Engineered by Xmart Lighting
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Strategic Vietnam Production Manufactured at our state-of-the-art facility in Pho Yen City, Thai Nguyen Province, Vietnam. We provide robust OEM/ODM services with significant supply chain advantages.
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Global Commercial Compliance Fully backed by UL, ETL, CE, CB, and RoHS certifications. Engineered to meet the rigorous demands of global commercial lighting projects.
LONG-RUN PROJECT PLANNING
When Should You Specify a 36V or 48V Long-Run LED Strip?
A 36V or 48V long-run LED strip should be considered when a commercial lighting project requires an extended linear installation and reducing intermediate power-feed points may simplify the system. Higher DC voltage and on-strip current regulation can help manage conductor losses, but neither guarantees a fixed run length or identical brightness from end to end.
Extended Linear Layouts
A validated long-run platform may reduce the number of intermediate power-feed points required for corridors, coves and continuous architectural light lines.
Engineering check:
Confirm total length, W/m or W/ft, one-end or two-end feed, cable distance, allowable voltage drop and permitted start-to-end brightness variation.
Limited Power-Feed Access
Fewer feed locations may simplify projects where additional power cables, drivers or maintenance access points are difficult to place.
Engineering check:
Review driver location, cable gauge, voltage at the strip input, service access, circuit protection and local installation requirements.
Defined Start-to-End Performance
On-strip constant-current regulation can help maintain LED current while the supply voltage remains within the regulator’s designed operating range.
Engineering check:
Measure start and end voltage, regulator headroom, light output variation, PCB temperature and performance under the proposed load and ambient conditions.
OEM/ODM System Integration
Lighting brands, fixture manufacturers and project suppliers can evaluate the LED strip, power supply, cable, connector, reel length and packaging as one coordinated system.
Engineering check:
Approve the exact model, wiring plan, test conditions, performance tolerance, sample, certification coverage and manufacturing route before mass production.
“48V” Is a Voltage Platform, Not a Run-Length Guarantee
A published maximum run length is incomplete unless it identifies the exact model, power per meter or foot, PCB construction, cable size, ambient temperature, IP construction, power-feed method and permitted voltage or brightness variation.
At the same electrical power, increasing voltage from 24V to 48V reduces operating current. This can reduce resistive losses in conductors, but it does not eliminate voltage drop or automatically guarantee lower LED temperature.
One-end and two-end power-feed results must be stated separately. A two-end feed length must not be presented as a single-end capability.
For model evaluation, provide the required total length, light type, voltage, W/m or W/ft, installation environment, cable distance, preferred feed method and acceptable end-of-run variation.
Application Scenarios
Building Temporary Lighting
Construction Lighting
Outdoor Lighting
Tunnel Task Lighting
Architectural Task Lighting
Large-Scale Continuous
Quick Series Overview
Run Length
120m / 100m / 80m
(Powered by 2 end)
(Powered by 2 end)
Voltage Options
48V / 36V / 24V DC
Constant Current Type
IC External
Available Colors
Single / TW / RGBW/COB
IP Ratings
IP20 / IP65 / IP67
CRI
CRI > 90
Warranty
3–5 Years
Manufacturing
OEM / Custom Support
Core Technology Architecture
24V vs 48V Systems
At the same electrical power, increasing the system voltage from 24V to 48V reduces current by approximately half. Lower current can reduce resistive losses in conductors and PCB traces, but it does not automatically reduce LED junction temperature or guarantee a fixed run length.
24V
The Industry Standard
Highly versatile for general architectural lighting. However, inherent PCB resistance causes noticeable brightness degradation over distances.
Max Continuous Run
5 - 10 Meters
Power
Double end power
Heat Generation
Standard
Next Gen
48V
Engineered for Long run
Operating at 48V halves the electrical current compared to 24V, drastically minimizing heat and allowing extensive continuous runs.
Max Continuous Run
120M
Power
Double end power
Electrical Current
-50% Reduction
The Xmart Breakthrough
Constant Current IC Integration
We push beyond standard voltage limits. By integrating advanced Constant Current ICs directly into the circuitry, our Ultra-Long series dynamically regulates power end-to-end.
Achieve perfectly uniform illumination—powering seamless runs up to 120 meters without a single drop in lumen output.
STANDARD CV: BRIGHTNESS FADE
XMART IC: 100% UNIFORM
Global OEM/ODM Manufacturing
Directly engineered and produced at our state-of-the-art facility.
Pho Yen City, Thai Nguyen Province, Vietnam.
UL
ETL
CE
CB
RoHS
Constant Current Technology
48V Ultra Long LED Strip Series
Engineered with advanced external IC components, our 48V series guarantees zero voltage drop over extended runs up to 50 meters. Featuring superior heat dissipation and uniform brightness, these strips are the ultimate solution for large-scale architectural and commercial lighting projects.
COB
48V COB LED Strip
High-density chip-on-board technology delivering completely dot-free, seamless illumination. Ideal for premium linear profiles and reflective surfaces.
Explore Specifications
MONO
48V Single Color
High-efficacy monochromatic light available in multiple color temperatures (2700K-6500K). Reliable, ultra-long run architectural accents.
Explore Specifications
CCT
48V Tunable White
Dynamic color temperature adjustment from warm cozy tones to crisp cool white. Perfect for human-centric lighting environments.
Explore Specifications
RGB
48V RGB LED Strip
Vibrant, consistent color mixing across 50-meter runs without signal degradation. Built for entertainment venues and dynamic facades.
Explore Specifications
RGB+W
48V RGB+W LED Strip
Combines full RGB color with a dedicated pure white diode. Achieves a significantly broader color gamut and high-CRI white light.
Explore Specifications
Direct from Vietnam Factory
Premium OEM & ODM manufacturing. Fully certified with UL, ETL, CE, CB, and RoHS.
Contact SalesTechnical Documentation
Download datasheets, IES files, and installation guides for the 48V series.
Rigorous Product Testing
Intergrated Waterproof Test Chamber
Thermal Management Test
Integrating Sphere (CRI/Color)
Torsion Fatigue Test
Global Standard Certification
Engineered for the World
Our LED lighting solutions are manufactured in our Vietnam facility to meet the strictest international safety and quality standards, ensuring seamless market entry.
UL
ETL
CE
CB
RoHS
Fully compliant with leading global directives. We guarantee premium quality control from our advanced production lines directly to your distribution channels.
Custom My 36/48V Ultra Long LED Strip
Constant Current Type
Choose between IC External (versatile, high power) or IC Built-in (narrow width, high density) based on your extrusion profile and dot-free requirements.
Voltage (24V / 36V / 48V)
Select 48V for maximum runs up to 50m, 36V for 30m runs, or 24V for standard 20m continuous runs.
Color / Channel Type
Available in static Single Color (2700K-6500K), Tunable White, RGB, RGBW, or RGBTW for dynamic architectural lighting.
CRI Requirements
Standard CRI>90 for excellent color rendering, with 3-step MacAdam ellipse for strict color consistency across batches.
PCB Width & Reel Length
Specify PCB widths (from 5mm to 12mm+) and custom reel lengths (e.g., exactly 25m or 40m) to match your project bill of materials.
IP Protection
Options include IP20 (indoor), IP65 (silicone tube/coating for damp locations), and IP67 (fully encased for outdoor facades).
LED Density
Customize LEDs per meter (e.g., 60, 120, 240, 300 LEDs/m) to achieve the perfect balance of brightness and dot-free appearance.
Dimming Compatibility
Ensure IC parameters match your intended control system (DALI, 0-10V, DMX via decoders) for smooth, flicker-free dimming.
Cable & Connectors
Pre-soldered custom cable lengths, specific wire gauges (AWG), or waterproof connectors attached directly from the factory.
Label & Package
White-label packaging, custom SKU labels on anti-static bags, and customized reel designs for wholesale and brand distribution.
Custom My IP
IP20
Bare PCB board with exposed LED chips.
Ideal for dry indoor applications, typically installed inside aluminum profiles.
Ideal for dry indoor applications, typically installed inside aluminum profiles.
IP54
Nano coating applied to the surface.
Provides invisible protection against moisture and dust for damp indoor environments.
Provides invisible protection against moisture and dust for damp indoor environments.
IP65H
Heat-shrink tube encapsulation.
Thin, transparent protective sleeve offering basic splash resistance.
Thin, transparent protective sleeve offering basic splash resistance.
IP65
Silicone drip coating.
Surface coated with silicone to protect against dust and damp environments.
Surface coated with silicone to protect against dust and damp environments.
IP67
Silicone tube enclosure.
Hollow silicone tube providing excellent protection without color shift.
Hollow silicone tube providing excellent protection without color shift.
IP67E
Solid extrusion.
Fully encased solid silicone for outdoor architectural use and enhanced durability.
Fully encased solid silicone for outdoor architectural use and enhanced durability.
IP68
PU potting.
Fully sealed structure designed for permanent underwater immersion.
Fully sealed structure designed for permanent underwater immersion.
IP20 — Bare / LED Strip
IP65H — Heat Shrink / LED Strip
IP67 — Silicone Tube / LED Strip
IP68 — Silicone PU Extrusion / LED Strip
IP54 — Nano Coating / LED Strip
IP65 — Silicone Drip / LED Strip
IP67E — Solid Extrusion / LED Strip
Driver & Dimming Support
Ultra Long Constant Current LED Strips are compatible with standard constant voltage power supplies and mainstream PWM dimming systems.
Constant Voltage Supply
Use standard 24V, 36V, or 48V DC power supplies. The strip's IC handles the current regulation automatically.
0-10V / DALI / TRIAC
Fully compatible with standard dimming protocols via PWM controllers or dimmable CV drivers.
PWM Frequency
Supports PWM dimming. We recommend a PWM frequency of ≤ 2kHz for smooth, flicker-free operation.
Common Failures in Long Run Installations
Issue 1
LED Broken
Issue 2
PCB Damage
Issue 3
Brightness Inconsistency
Issue 4
Voltage Drop
Wiring Diagram Reference
One-End Power Input (Up to 60m)
Power supply → Single end connection → 50m continuous run (48V)
Two-End Power Input (Up to 120m)
Power supply → Splitters → Power injected at both ends → 100m continuous run
Frequently Asked Questions
What kind of power supply does the super long constant current LED strip need?
It requires a standard constant voltage power supply (24V, 36V, or 48V depending on the strip model). The constant current ICs on the strip itself handle the current regulation. Do NOT use a constant current driver.
Can the super long constant current LED strip be dimmed?
Yes, they are fully dimmable. They support PWM dimming methods including 0-10V, DALI, and TRIAC via compatible PWM controllers or dimmable power supplies. For optimal performance, a PWM frequency ≤ 2kHz is recommended.
What are the longest LED strip lights available?
With a single-end power input, our 48V constant current strips can reach 50 meters. If you power the strip from both ends (looping the power), you can achieve continuous runs of up to 100 meters without visible voltage drop.
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