BAU15S PY21W LED Turn Signal Bulbs CanBus-Ready Amber | T3 Series

T3 Series Amber LED PY21W Bulbs – Turn Signal Light with Can-Bus Decoder

Why Do You Need Lasfit Amber PY21W LED Turn Signal Lights?

In 2025, Lasfit redefines turn signal performance with the T3 LED bulbs. Featuring a built-in CanBus decoder, these bulbs eliminate annoying hyper flash and error codes—no external resistors required. Equipped with high-output 3030 SMD LED chips, the T3 bulbs deliver brightness levels far beyond traditional halogen lights.
It’s a smarter, brighter, and safer way to upgrade your vehicle lighting in one simple step.

Key Features of Lasfit Amber PY21W Turn Signal Bulbs

• Error-Free Performance with Built-in Decoder
  Tired of hyper flash and dashboard warning lights after installing LED bulbs? The T3 series solves this problem with a ceramic resistor built directly into the bulb, eliminating the need for external resistors. That means easier installation, lower costs, and a cleaner setup—just plug and play.
• Ultra-Bright Output with 20 SMD LED Chips
  Struggling with dim halogen lights? Each T3 bulb packs 20 high-powered 3030 SMD LEDs and delivers up to 2000 lumens per bulb with a 24W output—providing maximum visibility for safer lane changes and turns, day or night.
• Quick, Hassle-Free Installation
  Thanks to their compact size and halogen-like dimensions, T3 LED bulbs are a breeze to install. Just twist out your stock halogen bulb, insert the T3 LED bulb, and you’re done—no extra resistors, no special tools, and no stress.
• Built to Last – Intelligent Cooling System
  Durability meets design. T3 bulbs feature a full aluminum body, 8 heat dissipation hole, and a smart temperature control chip to prevent overheating. This advanced thermal management system extends the lifespan of your bulbs, ensuring they stay bright for years of daily driving and adventure.

-Product Spec-

• Product: T3-BAU15S-A
• Package Includes: 2 Bulbs
• Fit Size:BAU15S/ PY21W / 7507 / 1156PY / 5009 / 12093NA / 12496
• Installation Position: Turn Signal Light
• Wattage: 24W/bulb(max)
• Lumens: 2000LM/bulb(max)
• Color: Bright Amber
• LED Chips: 20PCS 3030 high-intensity LED Chips
• Socket: standard socket

-FAQs: Everything You Need to Know About T3 LED Bulbs-

Q1: What’s the difference between T-Series and T3-Series turn signal lights?

Brightness: T3-Series offers optimized brightness to prevent blinding oncoming drivers.
Decoding: New resistor for longer, more efficient decoding.
Lifespan: T3-Series has a heat filter for better heat dissipation and longer life.
There are more details on the differences between the T series and the T3 series.

Q2: What’s the difference between 1156, BAU15S, and BAU15S bulbs?

A: Many customers ask us about the differences between these bulb types. The key differences lie in whether they are single filament bulb and the angle of their two contact points. Lasfit’s T3 series covers all these models. You can check out Lasfit’s blog to get more detailed information about the different between 1156, BAU15S, and BAU15S bulbs.