Direct Factory Catalogue
Featured Constant Current & High-Density LED Strips & Sheets
Engineered for long-run linear consistency without voltage drop. TÜV Rheinland verified manufacturing standards for European commercial specifiers.
30 Meters
Continuous Single-Feed Run Without Voltage Drop
SDCM < 3
MacAdam Ellipse Strict Binning Accuracy
3 Oz / 4 Oz
Heavy Rolled-Copper Double Layer FPC PCB
50,000 Hrs
Rated L70/B10 Lifespan at 55°C Junction Temp
Engineering White Paper
Constant Current (CC) vs. Constant Voltage (CV) LED Linear Systems
Understanding the integrated circuit (IC) current regulator physics required for large-scale commercial lighting projects in Slovakia.
In commercial architectural linear illumination across Prešov and the broader Šariš metropolitan region, electrical contractors and lighting engineers encounter a fundamental challenge: voltage drop over extended runs. Traditional Constant Voltage (CV) flexible LED strips (typically 12V or 24V) experience progressive potential drops as electric current travels along the thin copper traces of the Flexible Printed Circuit (FPC). This leads to visible lumen attenuation, shift in correlated color temperature (CCT), and uneven localized heating near the power feeding point.
To overcome this physical bottleneck in architectural installations—such as continuous office coves, retail perimeter channels, or logistics warehouse perimeter accent lines—direct factory manufacturers employ Constant Current (CC) IC technology. By embedding micro-integrated current regulator ICs directly within each cuttable segment of the FPC board, each LED emitter receives a precise, stabilized forward current ($\mathbf{I_F}$), regardless of input voltage variances caused by trace resistance.
| Engineering Parameter | Constant Voltage (CV) Strips | Constant Current (CC) Integrated Strips | B2B Advantage for Prešov Contractors |
|---|---|---|---|
| Maximum Single Power Feed Run | 5 Meters (24V) / 10 Meters Max | 15 Meters to 30 Meters Continuous | 70% reduction in power driver installation points & wiring runs |
| Lumen Uniformity across Strip | 15% to 35% decay from head to tail | < 2% Linear Variation | Seamless architectural visual continuity without dim tail ends |
| Thermal Stress & Lifespan | High thermal concentration near driver feed point | Equally Distributed Heat dissipation | Extended L70/B10 operation beyond 50,000 project hours |
| PCB Copper Trace Thickness | Standard 1 oz / 2 oz FPC | Heavy 3 oz / 4 oz Double-Sided Rolled Copper | High tensile strength and superior thermal conduction |
| B2B Initial Component Cost | Lower upfront unit cost | Slightly higher IC component cost | Overall lower project cost (fewer power supplies & labor hours) |
IC Transistor Voltage Drop Compensation
The onboard micro-ICs function as active constant-current sinks. As raw voltage drops along a 20m run from 24V down to 19.5V, the IC automatically adjusts its internal impedance to supply a fixed 20mA to 50mA to every individual SMD/COB diode.
High Voltage 48V DC Systems
By doubling operating potential to 48V DC, current draw ($\mathbf{I = P/U}$) is cut in half. Combined with Constant Current IC regulation, this enables single-end power feed lengths up to 30 or 50 meters, perfect for extensive commercial facility perimeters.
Strict MacAdam Ellipse (SDCM < 3) Binning
For demanding B2B clients in Eastern Slovakia, binning consistency is paramount. We implement strict 3-step MacAdam chromaticity control across all batches, guaranteeing identical 2700K, 3000K, 4000K, or 6000K color rendition across orders.
Regional Market Focus
Localized Application Scenarios in Prešov & East Slovakia
How Constant Current LED strips and cuttable LED sheet backlight panels serve local architectural, retail, and industrial projects.
1. Historic Building Facades & Heritage Renovation (Hlavná Ulica & Solivar)
Prešov’s historic center features Gothic, Renaissance, and Baroque architectural elements requiring precise, subtle indirect linear lighting. High-CRI (Ra > 95) Constant Current silicone neon flex strips (IP67/IP68 rated) provide freeze-resistant, UV-stabilized exterior coving that handles sub-zero Slovakian winter temperatures down to -25°C without silicone embrittlement or lumen degradation.
2. Commercial Retail & Shopping Centers (Eperia & Novum Prešov)
Modern retail environments require continuous, shadowless lighting in store displays and cove ceilings. FCOB (Flip-Chip COB) Constant Current linear tapes provide dense 480 to 840 chips-per-meter dotless lines inside shallow aluminum profiles. This eliminates visible pixel dots on polished marble floors and metallic store fixtures.
3. Translucent Stone & Marble Slab Backlighting (Luxury Interior Fabrication)
Slovakian stone fabricators and high-end interior architects utilize our cuttable 24V LED Sheet panels for backlighting translucent onyx, quartz, and marble bar tops or reception counters. These modular, field-cuttable LED sheets ensure 100% uniform lux dispersion without hot spots even at ultra-shallow depth clearances of 30mm.
4. Industrial Parks & Logistics Centers (Záborské, Šarišské Bohdanovce, D1 Corridor)
East Slovakia's booming logistics infrastructure along the D1 motorways demands reliable, low-maintenance lighting systems. 48V Constant Current high-efficiency LED strips are deployed across expansive high-bay walkways, perimeter security channels, and automated rack indicators, minimizing driver counts and maintenance cycles.
Market Trends & Eco-Standards
EU Regulatory Landscape & Energy Transition in Slovakia
Navigating the technical and legal requirements for importing LED linear lighting into the Slovakian and broader EU markets.
As Slovakia accelerates its national energy efficiency transition under EU directive frameworks, commercial lighting procurement in Prešov has shifted dramatically toward high-efficacy (lm/W) linear LED products. Importers, wholesalers, and electrical distributors must comply with stringent EU directives:
Ecodesign SLR / ELR Compliance
Compliance with EU 2019/2020 (Single Lighting Regulation) and EU 2019/2015 (Energy Labelling Regulation). Our CC LED strips deliver luminous efficacy reaching up to 160 lm/W, meeting Class C and Class D energy efficiency ratings on EPREL databases.
CE, EMC & RoHS Technical Files
Full Declaration of Conformity (DoC) with complete Electromagnetic Compatibility (EMC EN 55015 / EN 61547) test reports, Low Voltage Directive (LVD EN 62031) compliance, and heavy metals restrictions (RoHS 2.0) verified by TÜV Rheinland.
Smart Building Integration (DALI-2 / Casambi)
Modern commercial spaces in Prešov increasingly incorporate smart dimming controls. Our Constant Current strips feature flicker-free 0-10V, DALI-2 DT6/DT8, PWM, and Casambi wireless dimming compatibility down to 0.1% without micro-strobe hazards.
TÜV Rheinland Audited Supplier
Direct Factory Partnership with Shenzhen Covek Lighting Co., Ltd.
Founded in 2011, providing reliable OEM/ODM flexible LED light manufacturing to European and Global B2B buyers.
Shenzhen Covek Lighting Co., Ltd. operates a modern 5,175 square meter manufacturing facility in Longhua District, Shenzhen, staffed by 133 skilled employees and engineers. Verified on-site by TÜV Rheinland, our plant integrates automated SMT placement lines, continuous FCOB phosphor encapsulation, silicone co-extrusion workshops, and an optical integrating sphere testing laboratory.
Full OEM & ODM Customization
From custom PCB trace width (3mm to 50mm), customized voltage (12V/24V/36V/48V), bespoke CCT spectrums, to custom buyer logo laser marking and retail drop-test packaging, our R&D releases 20–50 new lighting products monthly.
100% Quality Assurance & Aging
Every batch undergoes incoming raw LED chip inspection, 100% 8-hour continuous burn-in aging tests, optical spectroradiometer verification, and waterproof pressure chamber checks prior to shipment packing.
Slovakia & EU Logistics Support
Direct FOB Shenzhen, EXW, or DDP air/sea freight routes to Košice Airport (KSC) and regional logistics centers in Prešov. Flexible trade terms (T/T, L/C, PayPal) supported with full EU customs documentation.
Help Center
Prešov B2B Procurement FAQ
Technical and logistical questions frequently raised by Slovakian importers, wholesalers, and project managers.
What is the practical difference when choosing Constant Current vs Constant Voltage LED strips for a 20-meter cove in Prešov?
For a 20-meter continuous run using standard 24V Constant Voltage (CV) strips, you would need to run secondary power cables every 5 to 10 meters to prevent voltage drop and dimming at the end of the line. With Constant Current (CC) IC-integrated strips, you can power a single continuous 20m run from one end, achieving perfectly identical brightness and color temperature from meter 1 to meter 20 while drastically cutting wiring labor and power driver counts.
What Minimum Order Quantity (MOQ) applies for shipments to Slovakia?
Standard LED sheets start at an MOQ of just 1 piece for sample testing. Standard FCOB and slim silicone neon flex rolls start from 5 meters. Customized OEM orders (custom PCB width, specific CCT, or custom wire lead lengths) typically require 100 to 200 meters. We maintain flexible sample policies for registered Slovak lighting wholesalers and engineering firms.
How do Covek LED strips withstand the cold outdoor climate in East Slovakia?
Our outdoor-grade LED neon flex and waterproof strip lights utilize high-grade food-level Dow Corning silicone encapsulation (IP67/IP68). Unlike cheap PVC extrusions that crack, turn yellow, or become brittle in severe cold weather, our silicone profiles remain flexible and UV-stable from -40°C up to +80°C, ensuring reliable operation during harsh Slovak winters.
Are Covek products certified for commercial building inspections in the European Union?
Yes. All Covek LED strips, COB products, and LED sheets carry CE, RoHS, and EMC compliance documentation tested according to current EN standards under ISO 9001 factory management. Full technical datasheets, IES photometry files, and Declaration of Conformity documents are provided with your order for submittal to municipal inspectors.
Can I cut and re-connect Constant Current LED sheets on site during installation?
Absolutely. Our flexible LED backlight sheets feature a patented grid matrix PCB layout with designated cut marks along both horizontal and vertical axes. Every cut section retains its integrated IC current regulation, allowing stone fabricators in Prešov to cut the sheet into complex curved shapes for custom marble or quartz countertops.
What is the standard production lead time and freight transit time to Prešov?
Standard order production takes 7 to 12 working days depending on total meterage. Air express delivery (DHL/FedEx/UPS) to Prešov or Košice takes 4 to 6 business days. For bulk wholesale containers, sea-rail or sea freight to European ports (such as Koper or Hamburg) followed by direct trucking to Prešov takes approximately 25 to 35 days.
What warranty and after-sales protection does Shenzhen Covek Lighting provide?
We provide a standard 3-year factory warranty across our Constant Current LED strip and panel lines. Our quality policy guarantees feedback on any inquiry or technical claim within 24 hours, with 100% replacement compensation for verified manufacturing defect batches.
Which payment terms are accepted for international B2B orders?
We accept T/T (Telegraphic Transfer), L/C at sight, PayPal, Western Union, and Alibaba Escrow. Invoices can be issued in EUR, USD, or HKD to suit your local accounting preferences.
Partner with a Direct TÜV-Verified LED Factory Today
Request custom factory pricing, technical spec sheets, IES photometrics, or free engineering samples for your next project in Prešov or East Slovakia.
Get a Quote