| 🏷️ Brand | TecUpdater |
| 🛡️ Warranty | 1 Year, limited to one replacement per piece as due to compatibility, some cars may damage the bulb repeatedly. |
| 📦 Quantity / UOM | Set of 2 (1 Pair) |
| ♻️ Return / Exchange | Eligible as per policy |
| 💡 LED Type | 4014 SMD × 66 (High-Intensity Chips) |
| 🔋 Voltage Range | 12V DC |
| ⚡ Power Consumption | 4.2W (White DRL), 25.2W (Amber Turn Signal) |
| 🎨 Color Output | 6000K White (DRL), Amber Yellow (Turn Signal) |
| 📏 Lighting Angle | 360° wide beam coverage |
| 🔌 Socket/Connector | PY21W / BAU15S / 1156, T20 / 7440 / W21W |
| ⏳ Lifespan | 30,000+ hours |
| ⚙️ Features | Dual-color switchback (DRL + Turn Signal), automatic switchback function, built-in CANBUS error-free, vibration-resistant design |
| 🏗️ Build Quality | Aluminum housing with high-efficiency PCB for heat dissipation |
| 🔧 Installation | Plug-and-play for turn signal, additional wire tapping for DRL activation (no major modifications required) |
| 🚗 Applications | Front turn signal upgrade, DRL conversion, automotive retrofits and custom projects |
| ✅ Compatibility | Universal fit for most European, Japanese, Indian & American vehicles with listed socket types |
Upgrade your vehicle’s front lighting system with the TecUpdater 66 SMD 4014 Dual-Color LED Turn Signal Bulb, a premium solution that combines Daytime Running Light (DRL) functionality with high-visibility amber turn signals. Designed for car owners who want modern styling, enhanced safety, and CANBUS error-free performance, this switchback LED bulb converts non-DRL cars into DRL-equipped vehicles while providing crisp and reliable signaling.
Dual-Color Switchback Technology
The TecUpdater 66 SMD LED bulb features innovative dual-color switchback functionality:
White DRL Mode (4.2W): Provides bright, crisp daylight illumination that improves vehicle visibility during the day, giving your car a premium, OEM-like appearance.
Amber Turn Signal Mode (25.2W): Activates instantly when the turn signal is engaged, producing highly visible amber flashes that meet automotive standards.
Automatic Switchback: White DRL automatically deactivates when the turn signal is on and resumes after the signal cycle ends, eliminating confusion for other drivers.
This intelligent switching system ensures your car looks stylish while remaining compliant with signaling safety standards.
Connector Variants for Maximum Compatibility
TecUpdater offers two widely used connector options to suit various vehicles:
PY21W / BAU15S / 1156: Commonly used in European and Indian cars for front turn signals.
T20 / 7440 / W21W: Compatible with many Japanese and American vehicles.
Plug-and-play installation makes upgrades simple. The DRL function activates through easy wire tapping to an ignition or DRL power source—no cutting or complex rewiring needed.
CANBUS Error-Free Operation
Many aftermarket LEDs trigger hyper-flash, dashboard errors, or bulb-out warnings due to lower resistance than halogen bulbs. TecUpdater eliminates these issues with built-in CANBUS resistors, ensuring:
Flicker-free operation
No dashboard warnings
Seamless integration with most modern vehicles
Superior Brightness & Build Quality
66 High-Intensity 4014 SMD LEDs: Delivers bright, uniform illumination.
360° Wide Beam Angle: Ensures complete coverage with no dark spots.
Aluminum Housing: Promotes efficient heat dissipation for stable performance.
Extended Lifespan: Over 30,000 hours of reliable use.
Energy Efficient: Consumes less power than halogen bulbs while producing more light.
Technical Specifications
LED Chip Type: 4014 SMD × 66
Voltage: 12V DC
Power Consumption: 4.2W (White DRL), 25.2W (Amber Turn Signal)
Color Options: White DRL (6000K), Amber Turn Signal
Socket Compatibility: PY21W / BAU15S / 1156, T20 / 7440 / W21W
Lighting Angle: 360° full coverage
CANBUS Support: Yes, error-free on most vehicles
Installation: Plug-and-play with wire tapping for DRL activation
Material: Aluminum housing + high-efficiency PCB
Lifespan: 30,000+ hours
Applications
White DRL Mode: Converts non-DRL vehicles into DRL-equipped cars, improving daytime visibility and aesthetic appeal.
Amber Turn Signal Mode: Provides reliable, high-visibility signaling for safer driving.
Custom Projects: Suitable for automotive modifications, retrofits, off-road builds, or enthusiast upgrades.
Why Choose TecUpdater Dual-Color LED Bulbs?
TecUpdater specializes in automotive-grade LED solutions engineered for performance, compatibility, and long-term reliability. With the 66 SMD Dual-Color LED Bulb, you’re not just replacing a halogen indicator—you’re:
Adding DRL functionality to non-DRL vehicles
Ensuring error-free CANBUS operation
Enhancing safety with brighter and faster signals
Upgrading vehicle aesthetics to a premium OEM-like look
Upgrade your car today with the TecUpdater 66 SMD 4014 Dual-Color LED Turn Signal Bulb for brighter, faster, and safer signaling, along with DRL conversion capabilities.

























Osama Khan –
Working perfectly. I installed in my Swift 2015. Very bright DRL even in full day light.
Balaji Sundar –
I am using it since some time. Quality is very good and bright. It is a smart upgrade to add DRL is old cars.