LED Autolamps 1157RM Bayonet Globes Blister Single

LED Autolamps 1157RM BAY15D LED Stop Tail Globe 18 SMD 380lm Stop 125lm Tail 6500K CANbus Compatible 12-24V with Over-Voltage and Reverse Polarity Protection

The LED Autolamps 1157RM is a direct BAY15D bayonet replacement LED globe for stop/tail lamp applications. 18 SMD LEDs across two brightness levels: 380lm for the stop function and 125lm for the tail function. 6500K cool white, 0.43A at 12V. CANbus compatible, reverse polarity protected, and over-voltage protected to 32V. 50,000-hour rated lifespan. Sold as a blister single.

Product overview

The 1157RM installs directly into standard BAY15D (1157-format dual-contact) globe holders with a push-and-twist no adaptor or wiring modification required. The two brightness levels match the stop and tail functions of the standard dual-filament BAY15D incandescent: 380lm on stop (closely matched to the approximately 400lm of a standard 1157 stop filament) and 125lm on tail (above the approximately 100lm of a standard 1157 tail filament). The voltage differential between the stop and tail circuits automatically triggers the corresponding brightness level.

CANbus compatibility prevents false dashboard globe-blown warnings in modern vehicles with circuit load monitoring. Reverse polarity protection prevents globe failure from incorrect installation. Over-voltage protection to 32V guards against transient spikes, particularly relevant on 24V commercial vehicles. 12-24V compatible across light vehicles and heavy transport.

Note: BAY15D and BAY15S are different fittings. BAY15D is the dual-contact globe with offset pins for stop/tail functions. BAY15S is a single-contact globe. Confirm your lamp holder is BAY15D before purchasing.

Features and benefits

Dual-brightness stop/tail function: 380lm stop, 125lm tail matched to standard 1157 BAY15D incandescent output levels.

18 high-brightness SMD LEDs: Even output across the globe face for better reflector coverage.

6500K cool white: Crisp daylight-temperature output for improved stop light contrast and visibility.

CANbus compatible: Prevents false dashboard globe-blown warnings in modern vehicles.

Reverse polarity protected: Will not be damaged by incorrect installation.

32V over-voltage protection: Guards against voltage spikes in 12V and 24V systems.

BAY15D bayonet fitting: Direct drop-in for standard 1157-format dual-contact globe holders.

12V and 24V compatible: Suits passenger and light commercial vehicles and 24V heavy transport.

50,000-hour rated lifespan: Long-term replacement reducing globe change frequency.

Blister single.

Technical specs

Frequently asked questions

Is the 1157RM a direct replacement for a standard 1157 or BAY15D globe? Yes. The 1157RM uses the same BAY15D bayonet fitting as the standard 1157-format incandescent globe and installs with a push-and-twist into a standard BAY15D lamp holder. No adaptor or wiring modification is required.

What is CANbus compatibility and do I need it? Modern vehicles monitor globe circuit current to detect blown globes. An LED draws significantly less current than an incandescent, which can trigger a false "globe blown" warning. CANbus-compatible globes like the 1157RM are designed to suppress these false warnings. If your vehicle does not have globe load monitoring, CANbus compatibility has no downside.

What is the difference between BAY15D and BAY15S? BAY15D is the dual-contact globe with offset bayonet pins, used for combined stop/tail functions requiring two brightness levels. BAY15S is a single-contact globe for single-function applications. The 1157RM is BAY15D confirm your lamp holder type before purchasing.

Does this globe work on 24V commercial vehicles? Yes. The 1157RM operates across 12V to 24V and includes 32V over-voltage protection, making it suitable for both 12V passenger vehicles and 24V commercial vehicle applications.

How does the output compare to a standard 1157 incandescent globe? A standard 1157 incandescent globe produces approximately 400lm on the stop filament and around 100lm on the tail filament. The 1157RM's 380lm stop and 125lm tail output are closely matched to the incandescent equivalent in functional terms, with the added benefits of longer lifespan, lower current draw, and faster illumination response.