Auxbeam B21 Series 1157 Switchback LED Bulbs Built in Resistor CANBUS Error Free Anti Hyper Flash 2057 2357 7528 BAY15D Bulbs White and Amber 600% Super Bright Turn Signal Light DRL Parking Light

CANBUS ERROR FREE: Super compatible for 99% Vehicles. No hyper flash, no errors, no warning. With built-in 2023 CANBUS system, these 1157 dual color bulbs can directly alleviate decoding problems without trouble to prepare external resistors. Auxbeam offers 1-year warranty. Note: NOT fit Optima 2015-2020, 2015 Genesis Seden,Telluride 2020/2021, Tucson 2017/2020/2021, 2007 Accord, 2009 Sonata. For super few sensitive models, extra resistors are needed.. 600% EXTREMELY BRIGHT: Sequencing 36Pcs 2023 Upgraded high brightness 3030SMD chips precisely around each 1157 led bulb, 28W per bulb, High Power and 600% brighter, providing 6500K Cool White light or 3500K Amber Yellow light. Instant-on response without warm-up time. More noticable when turning, guard your driving safety.. DUAL COLOR FUNCTION: This 1157 switchback led bulb with resistor lights up cool white for parking lights or daytime running lights (DRL) but amber yellow for turn signal lights. Unlike most turn signals flashing ""amber-white-amber-white"" on the market, the Auxbeam 1157 turn signals flash ""amber-off-amber-off"", making it easier to see from a distance.. COOLING SYSTEM REALLY MATTERS: IP68 waterproof and dustproof. The built-in 2023 stable current IC driver avoids digital or VHF radio signal interference. The 2023 latest 4-layer cooling system - 12,000RPM silent fan + Copper cooling ring + 16Pcs heat sinks + 6063 aviation aluminum lamp body directly doubles heat dissipation, ensuring longer lifespan up to 60,000 hours.. 360°FULL CLEAR BEAM: Each 2057 led bulb provides 360° full illumination without dark spot or shadow. Compatible for US standard sockets. Fit socket 1157, 1157A, 1157NA, 1157LL, 2057, 2057A, 2357, 2357A, 2397, 3496, 7528, BAY15D, etc. No polarity, no drilling, no wiring, no damage, just Plug and Play. If any questions or flashing issues, please message us for free solutions.