When LED turn signals cause hyper-flashing or fail to flash, a solid-state relay is often the best fix. These relays replace traditional thermal flashers, delivering silent, consistent operation and a longer lifespan. This guide highlights five solid-state turn signal relays, explaining who each product is best for and why it stands out for different vehicles and setups.
| Product | Best For | Notes |
|---|---|---|
| FTHSO 2-Pin LED Flasher Relay | Motorcycles, scooters, ATVs, classic cars upgrading to LEDs | Silent, supports 0.1W–150W loads |
| LUPING Adjustable 2-Pin Flasher (2-Pack) | Broad motorcycle and car use; prefer dual-pack for multiple circuits | Two relays per package for convenience |
| DEWHEL CF-12 2-Pin Flasher Relay | Motorcycles and scooters needing normal-speed flash with LEDs | Eliminates need for load resistors |
| Grote 44010 Solid-State Flasher | Auto and light-truck maintenance; solid-state reliability | Three-wire design; Canada manufactured |
| iRhapsody 2-Pin LED Flasher With Ground | Vehicles converting to LED turn signals; quick test and install | Includes ground wire; fixed speed, initial orientation matters |
FTHSO 2-Pin LED Flasher Relay 12V DC
The FTHSO relay fixes hyper flash by replacing a standard thermal relay and supports a wide 0.1W–150W load range. It is silent due to its solid-state design, offering stable blinking for LED upgrades or traditional incandescent bulbs. Best for riders seeking a single, reliable solution for LED and filament signals, especially on motorcycles, scooters, ATVs, and classic cars. Caution: verify load range to ensure your bulb combination stays within 0.1W–150W to avoid misfires.
LUPING Adjustable 2-Pin Flasher (Pack of 2)
This two-relay package is designed for broad compatibility with motorcycles and cars, making it convenient for multiple LED conversions or upgrades in one project. Best for riders who want a straightforward, dual-pack solution that supports most standard 12V LED and incandescent setups on brands like Honda, Kawasaki, KTM, Suzuki, Yamaha, and similar models. Limitation: speed is fixed in some models; installation orientation can impact function, so test before mounting securely.
DEWHEL CF-12 12V 2-Pin Flasher Relay
DEWHEL’s CF-12 relay is designed to prevent hyper flashing and maintain a normal flash rate with or without LED bulbs. It alleviates the need for separate load resistors in many setups. Best for riders who want a simple, reliable fix that works across motorcycles and scooters with 12V systems. Limitation: operates within a 0.02A–10A switch current; ensure your circuit’s current draw stays within range to avoid under-flash or over-flash.
Grote 44010 Solid-State Flasher
Grote’s solid-state flasher is positioned for auto and light-truck maintenance. The three-wire design supports more complex circuit layouts, and the product originates from a Canadian manufacturer. Best for buyers seeking a robust, vehicle-grade relay with straightforward replacement in standard 12V systems. Limitation: product details are limited on specs beyond general use; confirm terminal layout and compatibility before purchase.
iRhapsody 2-Pin Flasher Relay With Ground
The iRhapsody relay includes a ground wire and is designed for LED turn-signal upgrades. It features a fixed blink speed and emphasizes proper orientation during installation for reliable operation. Best for quick LED conversions on a variety of vehicles where a single, compact unit is preferred. Caution: the first installation orientation matters; test and adjust before final mounting to avoid shift or misoperation later.
Buying Guide: Key Considerations For Selecting A Solid-State Flasher
- Load compatibility: Verify the total wattage or current draw your signals use and ensure the relay supports at least that load. LEDs draw far less power than incandescent bulbs, which is the root cause of hyper-flash in many modern vehicles.
- Pin configuration and wiring: Most listed options are 2-pin or 3-pin plug-in designs. Confirm your vehicle’s connector layout and mounting space before purchase.
- Silent operation: All listed options are solid-state, offering silent operation with no clicking. This is especially desirable for late-model motorcycles and cars where noise reduction is preferred.
- Install orientation: Some relays require a specific orientation for stable operation. Test the unit with the wires connected before final mounting to avoid future misfires.
- Number of units per package: If you’re upgrading multiple circuits (e.g., dual turn signals on a motorcycle plus indicators on a car), consider buying a multi-pack to streamline installation and ensure consistency across circuits.
- Vehicle type compatibility: While many relays are marketed for motorcycles and cars, some are noted for truck or automotive use. Match the product to your vehicle category and electrical system.
- Installation tips: Label wires, disconnect power before swaps, and verify terminal layouts by reference to the original relay. Secure mounting to prevent vibration damage on bikes or off-road vehicles.
FAQ
- What is a solid-state turn signal relay?
A solid-state relay controls the blinking rate without moving parts, reducing wear and eliminating click noise. It helps maintain a steady flash when LED bulbs are installed.
- Do these relays require resistors with LED bulbs?
Not always. Some relays are designed to work with LEDs without resistors, while others may still require resistors depending on the vehicle’s electrical design.
- How do I know which relay fits my vehicle?
Check the relay’s pin count, current rating, and compatibility notes. Compare with your original flasher’s wiring diagram and, if possible, the vehicle’s service manual.
- Is orientation important when installing a 2-pin relay?
Yes. Some relays require the black box in a specific orientation for proper operation. Test the unit before final mounting to avoid misbehavior.
- Can I use a 3-pin relay on a 2-pin system?
Not recommended. Mismatched pin configurations can prevent proper operation or cause wiring issues.
- Will these fix hyper-flash on all LED installations?
Most will reduce or eliminate hyper-flash for many LED configurations, but results can vary with unique vehicle electrical setups. Always verify after installation.