Self-Flashing G18 LED Bulb | Built-in Flasher Strobe 12V 24V

Name: Self-Flashing G18 LED Bulb (Built-in Flasher) G18C-39L-SFB - BA15S / BA15D / BAY15D (6-12V / 12-24V / 48V)
Brand: MIDCARS
SKU: G18C-39L-SFB

Self-Flashing Driver Architecture (Built-in Flasher IC)

The G18C-39L-SFB is an engineered self-flashing bayonet LED replacement bulb with an autonomous onboard timing IC integrated directly into the internal driver. Unlike standard LED bulbs that require external thermal flashers, electro-mechanical relays, or electronic flasher boxes to cycle power, the G18C bulb initiates automated stroboscopic flashing immediately upon receiving constant DC power.

This standalone architecture eliminates external relay failure points, rewiring complexities, and load-resistor heating issues, allowing direct drop-in retrofit into motorcycle turn signal housings, perimeter safety beacons, utility truck headache racks, and industrial machinery alert stations.

Three Standard Bayonet Base Configurations (1 Row × 3 Sizes)

To accommodate global motorcycle, automotive, and industrial fixture standards, the G18C self-flashing series is precision-manufactured in three distinct metal bayonet base formats with identical Φ18mm × 43mm envelope dimensions:

BA15S single contact 180 degree level pin dimensional blueprint D18x43mm

BA15S Base (1156 / Single Contact)

Single bottom solder contact with 180° level parallel side bayonet pins. Universal for single-circuit turn and marker lights.

BA15D dual contact 180 degree level pin dimensional blueprint D18x43mm

BA15D Base (1142 / Dual Level Pins)

Dual bottom solder contacts with 180° level parallel side pins. Engineered for isolated ground and dual-line circuits.

BAY15D dual contact index staggered pin dimensional blueprint D18x43mm

BAY15D Base (1157 / Staggered Pins)

Dual bottom contacts with keyed indexed offset height pins. Standard for dual-mode vehicle tail and brake housings.

Live Strobe Demonstration (Official Video)

Watch the real-world stroboscopic performance of our G18C-39L-SFB self-flashing LED bulb. Notice the instantaneous automatic strobe cycling upon DC power application without any external flasher relay:

Demonstration showing standard 1 flash per second (60 FPM) preset. Custom 30/90 FPM and 300 FPM (5 Hz) emergency burst patterns available upon factory order.

Programmable Flash Rates & Multi-Voltage Compatibility

Factory micro-controller firmware supports multiple standardized flashing cycles tailored to specific regulatory and operational environments:

Standard Warning (60 / 90 FPM): Complies with highway vehicle hazard signaling rhythms for motorcycle and roadside service vehicles.
Emergency Strobe (300 FPM / 5 Hz Rapid Burst): Rapid 5-cycles-per-second high-urgency strobe pattern designed for industrial forklifts, airport ground support, and construction perimeter lights.
Discrete Voltage Ranges: Precision DC drivers available in 6-12V (classic bikes), 12-24V (universal automotive/truck), and 48V (electric equipment/telecom).

Frequently Asked Questions

What is the difference between a self-flashing LED bulb and a standard flashing bulb?

A self-flashing bulb (SFB) incorporates an autonomous timing micro-controller inside the bulb itself. It flashes automatically as soon as standard constant DC power is applied, requiring NO external flasher relays, electronic blinker units, or load resistors. A regular bulb only flashes if the vehicle wiring already has an external flashing relay pulsing the power on and off.

How do I choose between BA15S, BA15D, and BAY15D bayonet bases?

Examine the bottom contacts and side locking pins: BA15S features a single center bottom contact with parallel side pins (180° level). BA15D features two bottom contacts with parallel side pins (180° level). BAY15D features two bottom contacts with indexed offset-height side pins (one pin higher than the other to prevent reverse insertion). Refer to our dimensional blueprints above.

Can the flashing frequency be customized for industrial and fleet orders?

Yes. While our standard production configurations offer 30 FPM, 60 FPM, 90 FPM, or 5 Hz rapid strobe patterns, we provide custom firmware programming for OEM and fleet procurement. We can customize flash rates, burst intervals (e.g. triple strobe then pause), and duty cycles to match your fleet safety specifications.

What is the factory minimum order quantity (MOQ) and custom packaging policy?

Standard specifications are available from 5 pairs for initial evaluation and distributor sample verification. For customized commercial blister packs, printed gift boxes, or client OEM branding, the packaging printing MOQ is 5,000 units. The client pre-funds the custom packaging inventory, which is warehoused in our Dongguan factory and drawn down across rolling production orders.

Product Model	G18C-39L-SFB
Socket / Base	BA15S (1156 Single Contact) / BA15D (Dual Contact Level Pins) / BAY15D (1157 Offset Pins)
Flashing Architecture	Self-Flashing Circuitry (Built-in Flasher IC, No External Relay Required)
Strobe Frequency	Factory Presets: 30 FPM, 60 FPM, 90 FPM, or 300 FPM (5 Hz Rapid Emergency Strobe)
Bulb Dimensions	Φ18mm Outer Diameter × 43mm Overall Length
Operating Voltage	6-12VDC / 12-24VDC / 48VDC (Discrete Voltage Architectures)
Power Consumption	3.0W (+/-0.1W Continuous-Duty Output)
Luminous Flux	260 LM (360-Degree Omnidirectional Optical Dispersion)
Color Temperature / Wavelength	6500K Xenon White / 3000K Warm White / Amber (595-600nm) / Red (620-630nm)
LED Emitters	39x High-Efficiency SMD 3014 LEDs (Radial Cylindrical Array)
Enclosure / Lens	Optical High-Clarity Clear Polycarbonate Shell (Optional Diffused Frosted Cover)
Primary Uses	Motorcycle Hazard & Signal Lights, Security Beacon, Forklift Safety Light, Industrial Alarm
Quality & Warranty	CE (EMC Compliant), RoHS \| 2 Years Factory Warranty
Factory B2B Terms	Standard: from 5 pairs \| Custom Packaging: Packaging run MOQ 5,000 pcs (pre-funded and drawn down across repeat orders)

Self-Flashing G18 LED Bulb (Built-in Flasher) G18C-39L-SFB - BA15S / BA15D / BAY15D (6-12V / 12-24V / 48V)