LED Light Bulbs, 15mm Bayonet, Right-Angled
9 & 30 LED Cluster Single-Contact & Indexed Dual-Contact Automotive
Drop-In Replacement to #1157 (Indexed) Dual-Filament Incandescent Bulbs
For aftermarket use. May not comply with SAE or U.S. DOT standards.

LED brake/tail lamps may not work with some older thermal flasher units. An LED brake/tail lamp will require an electronic flasher/blinker unit which is commonly available at your local auto parts store.

AUT1157R1-(BAY15d) (Double-contact Index Bayonet) Series   Yellow LED Running/Turn Signal; Red LED Brake/Tail for 12 to 14 Volt Applications
U.S. Patent No. 402,772

  Electrical-Optical Characteristics (Ta = 25°C)  
PRICEMIN BUYLight ModeMaximum
Number of
Fixture SizeInput Voltage, V
Color Temp.
λp, nmLED Emitting

AUT1156R1-(Ba15s) (Single-contact Bayonet) Series   Yellow LED Turn Signalfor 12/14 Volt Applications
U.S. Patent No. 402,772

AUT-RES Accessory   Load Resistor (Sold Separately)
Inline Wiring Schematic
Load Resistor Statement: If installing LED bulbs in your car or motorcycle causes your blinkers to blink fast or causes other electrical problems you may need to install a load resistor to correct these problems. Since LED bulbs draw much less current than standard incandescent bulbs your electrical computer system may think that your bulbs are not working. The AUT-RES-6-50 should resolve these problems. This is a 6 Ohms 50 Watt resistor that needs to be installed in-parallel with your tail/blinker lights, one Load resistor (AUT-RES-6-50) is required for each tail/blinker light.

Load Resistor
  Electrical-Optical Characteristics (Ta = 25°C)  
PRICEMIN BUYLight ModeMaximum
Number of
Fixture SizeInput Voltage, V
Color Temp.
λp, nmLED Emitting
Call 800-579-4875 To ORDERClick For Volume Discount Thru Distributor

Caution: This Load Resistor (AUT-RES-6-50) gets extremely hot and needs to be installed correctly. The flat surface of the AUT-RES-6-50 needs to make a good secure contact on a clean flat metal surface on your car or motorcycle. This will act as a heat sink which should keep the Load Resistor (AUT-RES-6-50) cooler. Keep this Load Resistor (AUT-RES-6-50) away from oil, skin, plastic, wires , combustible gases and flammable materials. LEDtronics is not responsible for damage caused to persons or property with installation of the Load Resistor (AUT-RES-6-50).

All specifications and pricing subject to change without notice.
  • Three Years Lamp Warranty
  • Maintenance Free, Easy Installation
  • Solid-State, High Shock / Vibration Resistant
  • Built-in Current Limiting Resistors
  • Long Life 100,000+ hours
  • Low Power Consumption, High Intensity
  • Major Power Savings
  • Designed to work in negative ground vehicles
Options:  For qualified applications and large quantity orders
  • Other Voltages Available
  • Other Bases Available
  • Other Colors Available
  • Auto/Aircraft
  • Auto Signal
  • Recreational Vehicles
  • Trucks

Special Notes
1) For best results, LED lamp output color should be same as Lens/ Filter color above the lamp.
2) LED Lamps shown are for most standard applications.
3) Some applications may require custom or modified configuration of the LED Lamp.
4) LED Lamps shown are for direct DC or AC voltage supply. External resistor, relays or special circuits may require special LED Lamps.
Talk to the Experts

Let us help you get started with our
Premium-brand LED lighting

Phone Image Call (310) 534-1505 or
Toll Free (800) 579-4875
Form Image Contact form
Email Image E-mail directly
Find a Distributor
Find a Rep Reps Wanted
Incandescent to LED Cross Reference

We can second source most LED Indicators from:

  • Industrial Devices (IDI)
  • Data Display Products (DDP)
  • Chicago Miniature (CM)
  • Hewlett-Packard (HP)
  • Visual Communcations (VCC)
  • Dialight
  • Eldema
  • Starled
  • Marl
  • Bulgin
  • Sloan
  • Leecraft
  • Solico
  • Apem
  • Littlefuse
LinkedIn Twitter Facebook YouTube Instagram Flickr