Automotive Flashing Light Relay WM FL005

Product Overview

The WM FL005 Flashing Relay Module is a high‑performance, solid‑state/electromechanical flashing relay designed for automotive, truck, agricultural, and industrial warning light systems. This Flash Relay provides precise on/off cycling for turn signals, hazard lights, and strobe applications at a stable flash rate of 60–120 flashes per minute. Rated for 12V/24V DC systems and capable of switching loads up to 10A, the FL005 features ultra‑low internal relay coil consumption (0.3–0.43W), fast switching (≤4ms), and high insulation resistance (>500MΩ). Its compact, sealed housing protects against moisture, dust, and vibration – ideal for both OEM and aftermarket installations. As a core product in YM’s automotive relay portfolio – which includes Automotive Relay, PCB Board Relay, Latching Relay, Industrial Power Relay, and Solid State Relay – the WM FL005 delivers reliable flashing control for vehicles, agricultural machinery, and emergency equipment.

Technical Specifications

Electrical Ratings (Flasher Module)

• Nominal system voltage: 12V DC or 24V DC (specify when ordering)
• Flash rate (steady state): 60 – 120 flashes per minute (adjustable)
• Duty cycle: 50% ±10%
• Maximum switching current (resistive): 10A at 12V/24V DC
• Low level switching capability: (10–50)μA, (10–50)mV – 1×10⁵ operations
• Internal relay contact resistance: ≤50mΩ initial; after life ≤200mΩ
• Dielectric strength (normal atmosphere): 500Vrms, 50Hz; under low pressure: 250Vrms
• Insulation resistance: >500MΩ at 500V DC; after life >50MΩ

Coil & Timing (Internal Relay)

• Internal relay coil power consumption: (0.3–0.43)W
• Action time (operate/release): ≤4ms (typical ≤3ms)
• Incentive pulse width (internal): (10–50)ms
• Coil resistance (at 25°C): 1700–2400Ω (24V version); 330–480Ω (12V version)

Mechanical & Environmental

• Weight: <3g – lightweight module
• Sealing (leakage rate): ≤10⁻³ Pa·cm³/s (hermetic protection)
• Operating temperature: -40°C to +85°C
• Vibration resistance: 10g RMS, 10-2000Hz per MIL-STD-810
• Terminal style: 2‑pin or 3‑pin (ISO standard) – plug‑and‑play

All parameters are validated at 25°C ambient. The WM FL005 meets SAE J590 and ECE R6 requirements for turn signal flashers.

Product Images & Visuals

Above: WM FL005 flashing relay module – compact design with standard automotive terminals. Contact YM for dimensional drawings and detailed wiring diagrams.

Key Features & Advantages for Automotive & Industrial Use

• Precise & stable flash rate: Maintains 60–120 flashes per minute regardless of load variation (within rated range) – eliminates hyper‑flash or slow‑flash issues common with thermal flashers.
• High load capacity (10A): Supports up to 10 incandescent or LED turn signal bulbs – suitable for trucks, trailers, agricultural vehicles, and emergency warning lights.
• Ultra‑low power consumption: Internal relay consumes only 0.3–0.43W, reducing electrical load on vehicle alternator and battery – ideal for long‑duration hazard light operation.
• Hermetic sealing (≤10⁻³ Pa·cm³/s): Protects internal electronics and contacts from moisture, dust, and road salt – ensures reliable operation in harsh under‑hood or exterior environments.
• Wide voltage tolerance: Operates from 9V to 16V (12V version) or 18V to 32V (24V version), with built‑in transient protection for jump starts and load dump.
• Plug‑and‑play compatibility: Standard 2‑pin or 3‑pin automotive flasher footprint – direct replacement for OEM flasher units in most passenger cars, trucks, and motorcycles.

YM’s engineering advantage: The WM FL005 combines a precision timer IC with a robust Automotive Relay (derived from our Metal Sealing Relay and Polarized Relay technologies) to achieve long life and accurate timing. Compared to traditional bimetallic flashers, the FL005 offers 10x longer life and consistent flash rate regardless of temperature. For complete vehicle lighting control, YM also offers PCB Board Relay and Industrial Power Relay families.

How to Install & Use the WM FL005 Flashing Relay – Step by Step

1. Identify flasher type: Determine if your vehicle uses a 2‑pin (power + load) or 3‑pin (power, load, ground) flasher socket. The WM FL005 is available in both configurations.
2. Disconnect battery: For safety, remove the negative battery cable before replacing the flasher relay.
3. Locate the original flasher: Typically in the fuse box (under dash or hood). Remove the old flasher unit by pulling it straight out.
4. Install WM FL005: Align the pins with the socket and press firmly until seated. For 3‑pin versions, ensure the ground pin (usually marked “E” or “31”) is connected.
5. Reconnect battery and test: Turn on the turn signal or hazard switch. Verify that all indicator lamps flash at a steady rate (60–120 min⁻¹).
6. Check LED compatibility (if applicable): For vehicles with LED bulbs, the WM FL005 may require a load resistor or it can be ordered as an LED‑compatible version (no external resistor needed).

Pro tip: If using the WM FL005 with LED trailer lights, select the “LED‑ready” option (built‑in low‑load detection) to maintain correct flash rate without adding external resistors.

Application Scenarios & Key Buyer Benefits

Typical Automotive & Industrial Uses

• Passenger cars & light trucks: Direct replacement for factory turn signal/hazard flasher – eliminates erratic flashing.
• Heavy‑duty trucks & semi‑trailers: 10A capacity handles multiple trailer lamps (e.g., 12+ bulbs) – meets DOT requirements.
• Agricultural & construction equipment: Tractors, harvesters, and loaders – vibration‑resistant and sealed against dust.
• Emergency & utility vehicles: Police cars, ambulances, and service trucks – reliable for warning light systems.
• Marine & RV applications: 12V systems – sealed module prevents corrosion from humidity and salt spray.

Direct Value to International Buyers (OEMs, Aftermarket Distributors, Fleet Operators)

• Improved safety: Consistent flash rate ensures other drivers clearly see turn/hazard signals – reduces accident risk. Meets SAE J590 and ECE R6.
• Lower maintenance costs: Electronic timing eliminates contact welding and thermal fatigue common in bimetallic flashers – extends service life by 5x.
• Energy savings: Low coil power (0.43W max) reduces alternator load – beneficial for EVs and hybrid fleets.
• Supply chain consolidation: The WM FL005 complements YM’s full range of Flash Relay and Automotive Relay products – one qualified source for all vehicle flashing and switching needs.

For OEMs, YM offers custom flash rates, pin configurations, and integrated diagnostic features (e.g., lamp outage detection). Engineering samples available for qualification.

Certifications & Compliance

• SAE J590 (Turn Signal Flashers) – flash rate and durability tested.
• ECE R6 (Direction Indicators) – compliance for European markets.
• ISO 9001:2015 & IATF 16949 certified manufacturing (automotive quality).
• RoHS 2011/65/EU & REACH (EC 1907/2006) compliant – full material declaration.
• ISO 7637-2 transient immunity – suitable for 12V/24V vehicle electrical systems.

Each WM FL005 flasher module is 100% functionally tested for flash rate accuracy, load current capacity, contact resistance, and insulation resistance. Lot traceability per IATF 16949 is maintained.

Customization Options

YM supports tailored WM FL005 variants for volume OEM and aftermarket orders. Customizations include:

• Flash rate adjustment: Fixed rates from 30 to 200 min⁻¹, or programmable (for special warning patterns).
• Load sensitivity: Standard (bulb load, 10W‑200W) or LED‑compatible (0.5W‑50W, no external resistor).
• Voltage variants: 12V, 24V, 42V (for heavy trucks), or custom DC voltages.
• Pin configuration: 2‑pin (X, L), 3‑pin (X, L, E), or 4‑pin with auxiliary output.
• Sealing level: Standard IP54 (splash‑proof), IP67 (waterproof), or IP69K (high‑pressure washdown).
• Housing color & marking: Black (standard), gray, or custom with logo/part number laser etching.

Our engineering team provides free feasibility analysis and samples for qualified programs. Minimum order quantities apply – contact YM with your specification sheet.

Production Process & Quality Assurance (IATF 16949)

YM’s flasher relay production line follows a zero‑defect, fully automated process designed to meet automotive industry standards.

• Incoming material control: 100% certification of electronic components (timer IC, resistors, capacitors), relay coils, and metal housings – traceable to batch certificates.
• PCB assembly: SMT placement of timing circuit followed by wave soldering and automatic optical inspection (AOI).
• Contact assembly & relay integration: Precision relay assembly in Class 100 cleanroom; dynamic contact testing to ensure ≤50mΩ resistance.
• Sealing & potting: Epoxy encapsulation or ultrasonic welding for moisture protection – 100% leak test.
• 100% functional test: Automated test system measures flash rate (60‑120 min⁻¹), load current, contact voltage drop, and over‑voltage protection (16V for 1 hour).
• Environmental sample testing: Each lot undergoes thermal cycling (-40°C to +85°C, 20 cycles), vibration (10g RMS), and life cycle test (10⁵ flashes at rated load).
• Final documentation: Flash rate report, electrical test record, and C of C provided with each shipment.

With over a decade of experience in Flash Relay and Automotive Relay manufacturing, YM has supplied millions of flasher modules to global automotive customers. The WM FL005 is built to exceed OEM reliability requirements for turn signal and hazard systems.