LED Surge Protective Device for Outdoor Lighting
LED Surge Protection Devices for Outdoor Lighting and Street Lights, Designed to Protect LED Drivers from Lightning Surges and Electrical Transients with 10kV and 20kV Protection Options
Why an LED Surge Protective Device Matters
LED drivers use switching power supplies with sensitive semiconductor components. Magnetic ballasts could absorb a lot of abuse; drivers cannot. A surge above the driver input rating can damage MOSFETs or control electronics, while repeated lower-level transients can gradually reduce driver life. This is why surge immunity is an important consideration in outdoor LED lighting systems.
Outdoor luminaires can be exposed to surges caused by nearby lightning activity as well as switching events on the electrical grid. These events appear as short-duration overvoltage transients. A properly selected surge protective device limits the voltage reaching downstream equipment and diverts surge current away from sensitive LED driver components.
Fail-Safe Status Indication: Selected PVLinkTech LED surge protection devices integrate thermal disconnection protection and a visible failure indicator, making it easier to identify when the protective element has reached the end of its service life instead of leaving the luminaire unknowingly unprotected.
Surge protective devices are selected according to their installation location and the level of protection required. IEC 61643-series standards cover low-voltage surge protective devices, while broader surge protection practices commonly use coordinated protection at the service entrance, distribution level, and equipment level. A luminaire-mounted SPD provides localized protection close to the LED driver and can complement upstream surge protection installed elsewhere in the electrical system.
Standard Protection
10kV Tier
10 kV / 5 kA
Suitable for applications requiring a 10kV surge protection level, with discharge-current capability selected according to the specific SPD model and system requirements.
Higher Protection
20kV Tier
20 kV / 10 kA
Designed for lighting installations where a higher surge withstand level and greater discharge-current capability are required, such as exposed outdoor and infrastructure applications.
The required surge protection level depends on the installation environment, local lightning exposure, electrical distribution system, grounding conditions, LED driver withstand capability, and the protection already installed upstream. A 20kV solution provides greater surge-protection margin than a 10kV solution, but the appropriate SPD should always be selected according to the actual luminaire and system requirements.
LED Surge Protective Device Range
The range is built around three mounting layouts: in-line for luminaire installation, distribution box protection, and linear lighting boards. Every layout has a 10kV and a 20kV version.
| Series | Wiring / Position | 10kV Version | 20kV Version | IP Rating |
|---|---|---|---|---|
| GSPD1 | In-line with cable leads, fits between driver and luminaire | GSPD1/10kV | GSPD1-20/20kV | IP67 |
| GSPD3 | For distribution boxes, panel mounting | GSPD3/10kV | GSPD3-20/20kV | IP67 |
| GSPD4 | In-line | GSPD4/10kV | GSPD4-20/20kV | IP67 |
| GSPD5 | In-line and parallel types | GSPD5/10kV | GSPD5-20/20kV | IP67 |
| M997 | In-line | M997/10kV | M997-20/20kV | IP67 |
| M998 | Linear lighting scheme, LED linear boards | M998/10kV | M998-20/20kV | IP67 |
| M999 | In-line | M999/10kV | M999/20kV | IP67 |
Quick Field Installation
GSPD1 ships with factory-fitted leads (SJOW 3×18 AWG on the 10kV version and UL3239 20 AWG on the 20kV version), eliminating the need for installers to open the housing.
Versatile Mounting Options
M998 is tailored for LED linear boards in architectural and signage lighting schemes. GSPD3 serves as the distribution box solution, providing high-level protection in a panel-friendly form factor.
10kV or 20kV SPD: Which Rating Protects Your LED Driver?
Both ratings protect the LED driver the same way: they clamp overvoltage transients before they reach the driver input. The real difference is how much surge energy each version can absorb. Our 10kV-rated LED surge protective device is rated Uoc 10kV, In 5kA (8/20 µs), Imax 10kA. The 20kV version doubles that capacity to Uoc 20kV, In 10kA, Imax 20kA. Both work on 277VAC / 320V class systems, so the selection is determined by exposure at the installation site rather than system operating voltage.
| Parameter |
10kV–Rated SPD
Enhanced
|
20kV–Rated SPD
Extreme
|
|---|---|---|
| Model suffix | /10kV | /20kV |
| Uoc (open-circuit voltage) | 10 kV | 20 kV |
| In, nominal discharge current (8/20 µs) | 5 kA | 10 kA |
| Imax, maximum discharge current (8/20 µs) | 10 kA | 20 kA |
| Uc, max continuous operating voltage | 320 V | 320 V |
| Up, voltage protection level (typical) | L–N < 1.25 kV | L–N < 1.4 kV |
| ANSI C136.2 exposure reference | Enhanced level (10 kV / 5 kA) | Extreme level (20 kV / 10 kA) |
| Typical installations | Parking lots, tunnels, building perimeters | Street roadways, stadiums, airports, open highways |
| Product Models & Enclosures | ||
| GSPD1 – in-line, cable leads, IP67 | GSPD1/10kV | GSPD1-20/20kV |
| GSPD3 – distribution box, IP67 | GSPD3/10kV | GSPD3-20/20kV |
| GSPD4 – in-line, IP67 | GSPD4/10kV | GSPD4-20/20kV |
| GSPD5 – compact, IP67 | GSPD5/10kV | GSPD5-20/20kV |
| M997 – in-line, IP67 | M997/10kV | M997-20/20kV |
| M998 – linear scheme, IP67 | M998/10kV | M998-20/20kV |
| M999 – in-line, IP67 | M999/10kV | M999-20/20kV |
Where to Use an LED Surge Protective Device
The same product family covers the full range of outdoor lighting, because the wiring schemes differ more than the protection level.
Street and Roadway Lighting
Open roads expose luminaires to the longest lightning paths and the fewest nearby structures to absorb strikes. Use the 20kV rating, and mount the SPD inside the luminaire or at the pole hand hole.
Parking Lots, Tunnels & Perimeters
These are partially shielded locations. The 10kV version matches the Enhanced exposure class and keeps project cost down without underprotecting the driver.
High-Mast, Stadium & Airport
These are the highest-exposure fixtures on any site, tall and fully exposed. Take the 20kV rating and verify the wiring with the datasheet before installation.
LED Linear Lighting
M998 is built for linear boards used in architectural and signage lighting, with a shorter body and factory-fitted leads that match the tighter wiring space.
Distribution Box Protection
When one box feeds a group of luminaires, GSPD3 protects the whole branch. It carries the same 10kV or 20kV ratings as the in-line series in a panel-friendly body.
Retrofit Projects
Installs between the mains and the driver without reworking the luminaire housing. The in-line series (GSPD1, GSPD4, GSPD5, M997, M999) covers this; GSPD1 is fastest with pre-terminated leads.
REQUEST AN LED SURGE PROTECTOR SAMPLE
PVLinkTech provides product samples so you can evaluate quality, fit, and performance before placing an order.
Free Sample Request
Tell us about your project and our team will help you select the right waterproof connector sample.
24H Express Dispatch
7-Day Global Delivery
Series or Parallel Installation: Which Wiring Do You Need?
Every LED surge protective device (SPD) in this range ships with an engineering datasheet illustrating the exact wiring schematics for both series and parallel configurations. Select the right method based on your luminaire architecture.
Continuous Power
Parallel Connection
In a parallel connection, the SPD sits across the supply lines (L, N, and PE) at the LED driver input. It shunts transient voltage surges harmlessly to ground while normal operating power continues without interruption to the driver.
- Connected across Phase, Neutral & Earth (L, N, PE)
- Maintains active lighting even after SPD end-of-life
Fail-Safe Cutoff
Series Connection
In a series connection, the SPD is wired directly into the active power path leading to the luminaire. When an extreme surge event occurs, it physically cuts off the power circuit to prevent destructive overload to downstream LED modules.
- In-line power circuit path to driver & luminaire
- Immediate visual indication when replacement is required
How to Choose the Right LED Surge Protective Device
Match the SPD to the installation, not to the driver price. Work through three fundamental questions:
Where is the light installed?
Exposure EvaluationEvaluate physical exposure to transient surges and regional lightning density before selecting the surge capacity:
High Exposure Zones
Open highways, bridges, high-mast installations, and regions with frequent thunderstorms.
Standard & Sheltered
Parking garages, transit tunnels, sheltered canopies, and dense urban streets.
Where does the SPD mount?
Mounting InterfaceIdentify the installation point to select the correct mechanical enclosure and wiring series:
Luminaire-Level Protection (In-Line Series)
GSPD1
GSPD4
GSPD5
M997
M999
Distribution Box (Feeds multiple luminaires)
GSPD3
LED Linear Lighting Boards
M998 (Direct Fit)
Check the electrical supply
System VoltageAll versions accept 277VAC systems with a 320V maximum continuous operating voltage (MCOV). The M999 TUV version is rated at 277V.
System
277VAC
MCOV
320V Max
M999 TUV
277V
Pre-Order Verification:
Always confirm driver input voltage specifications
and line tolerance prior to final procurement.
Buying Checklist for LED Surge Protective Devices
Five mistakes cause most failed orders — and how to avoid them in your project specifications.
-
Mistake #1
Treating the kV number as a system voltage
Uoc 10kV or 20kV is the open-circuit withstand rating of the SPD, not the supply voltage. The actual supply rating is Uc 320V for this range. Ensure your electrical engineers do not confuse nominal line input with test surge impulse capacity.
-
Mistake #2
Undersizing the discharge current
In is the nominal discharge current the SPD can handle repeatedly; Imax is the maximum discharge current rating. A 5kA / 10kA unit and a 10kA / 20kA unit may look nearly identical in the enclosure, but they represent different protection capabilities and application requirements.
-
Mistake #3
Ignoring lead length in the luminaire housing
Long connection leads add lead inductance and can reduce the surge clamping effectiveness at the LED driver. Keep SPD leads as short as practical and follow the wiring diagram on the technical datasheet. Our engineering datasheets provide connection schemes for both series and parallel installation.
-
Mistake #4
Ordering based on unit price alone
Internal components, MOV quality, thermal protection design, and manufacturing consistency all influence long-term surge protection performance. We apply component inspection and batch-level electrical testing before shipment. See our quality control process for more information about our inspection and testing procedures. A replaceable SPD can also help simplify maintenance compared with replacing an entire LED luminaire.
-
Mistake #5
Forgetting spare provisioning for field maintenance
Lightning and surge exposure varies significantly by site. For large outdoor lighting networks, maintaining spare SPDs can help field teams replace units during scheduled maintenance. Protection ratings such as 10kV and 20kV should be selected according to the luminaire design, installation environment, applicable standards, and project requirements.
LED Surge Protective Device Specifications
Common specifications across the range:
Built by a Factory That Tests, Not Just Ships
Every LED surge protective device in this range is produced in our factory, where we manage component sourcing, assembly, inspection and testing throughout the production process. Protection components are sourced from established suppliers, and each production batch undergoes functional verification before shipment. Thermal protection functions are also checked as part of the inspection process. See our quality control process and certificates page for more information about our testing procedures and available product certifications.
Verified Compliance & Traceability
Production batches follow defined functional inspection and electrical verification procedures to support consistent product quality and traceability for industrial and outdoor lighting projects.
TUV
CE
ETL
CQC
UKCA
RoHS
OEM & Custom Engineering
We support OEM and project-specific configurations. Lead length, wire type, housing color and laser marking can be adapted for volume requirements. Discuss your specifications with our custom manufacturing team ; for standard models, request a quote and our team can confirm the applicable pricing and lead-time details.
Fast quotation support for standard and custom projects
Frequently Asked Questions
Q1.What is the difference between a 10kV and 20kV LED surge protective device?
The 10kV version has Uoc 10kV, In 5kA and Imax 10kA. The 20kV version doubles the surge handling to Uoc 20kV, In 10kA and Imax 20kA. Both run on 277VAC / 320V systems and carry the same IP67 rating and certifications. Choose by exposure: 10kV for parking lots, tunnels and sheltered sites; 20kV for open roadways, stadiums, airports and lightning-prone regions.
Q2.What does Uoc 10kV mean on an LED SPD?
Uoc is the open-circuit voltage the SPD can withstand without failing. It is a surge immunity rating, not the operating voltage. The operating limit is Uc, which is 320V for this range.
Q3.Which rating do I need for LED street lights, 10kV or 20kV?
For typical street roadway lighting, use the 20kV version, which matches the Extreme exposure level in ANSI C136.2. This is the level recommended for street roadways, stadiums and airports in the standard. For parking lots and tunnels, the 10kV version at the Enhanced level is usually sufficient. When a project specification quotes an exposure class, pick the version that meets or exceeds it.
Q4.Can this LED surge protective device work with any LED driver?
It protects the driver input on 277VAC / 320V class systems. Confirm your driver input voltage and the luminaire wiring before ordering. If you are unsure, send us the driver datasheet and we will check compatibility before you commit.
Q5.What certifications does this LED surge protective device carry?
The range is certified TUV, CE, ETL, CQC, UKCA and RoHS, covering Europe, North America, China and the UK. See our certificates page for details.
Q6.Do you support OEM and custom versions?
Yes. We supply standard models from stock and custom versions with different lead lengths, wire types and markings. Discuss the requirement with our OEM team.
