Product Specifications

S09 Series 3157 Dual Brightness LED Signal Bulbs

The CN360 S09 Series 3157 offers high and low brightness operation from sixteen 3020 SMD LEDs. White, yellow, and red options are available for appropriate daytime running and brake-light applications. DC 9–18V operation and separate output figures for each color and mode define this version.

High and Low Brightness for Compatible Lamp Circuits

The 3157 version supports two brightness levels within a compatible lighting circuit. The high and low modes are separate from the choice of light color: white, yellow, and red are individual bulb options. The vehicle's wiring determines how each mode is used in the intended lamp position.

The listed applications are daytime running lights and brake lights, subject to the correct color and vehicle fitment. Match the replacement to the original lamp function and check both operating modes. High and low brightness describe the signal bulb's operating levels rather than headlight beam settings.

White, Yellow, and Red Light Options

White, yellow, and red versions are available. Each bulb is selected for its required color; these options do not indicate automatic color switching. The choice should follow the original lamp function, lens color, and the lighting requirements of the intended vehicle position.

Use the output figures for the selected color when evaluating the bulb. The appearance of white, yellow, and red light through a vehicle lens differs, so the color choice and the light-output rating should be considered together. Confirm the installed result within the intended housing.

16 LED Lighting Configuration

The 3157 configuration uses 16 leds with 3020 SMD light sources. This arrangement forms the lighting section of the bulb and should be matched to the corresponding socket version. The LED specification identifies the light-source configuration without assigning an unsupported chip brand.

The LED assembly works with the lamp's existing optical surfaces to deliver light through the lens. Correct bulb seating maintains the intended position inside the housing. Check the space around the complete lighting head and ensure that the lens or rear cover can be fitted normally after replacement.

Initial and Stable Light Output

In high mode, initial and stable output are 2,200 lm ± 10% and 1,700 lm ± 10% for white, 1,520 lm ± 10% and 1,100 lm ± 10% for yellow, and 350 lm ± 10% and 270 lm ± 10% for red.

In low mode, initial and stable output are 450 lm ± 10% and 480 lm ± 10% for white, 360 lm ± 10% and 400 lm ± 10% for yellow, and 85 lm ± 10% and 90 lm ± 10% for red. These are separate operating-state values for each color.

Mode-Specific Current at 13.5V

At 13.5V, high-mode input current is 2.4 A ± 10% initially and 2.0 A ± 10% when stable. Low-mode current is 0.5 A ± 10% in both states. These ratings apply to the listed color options and distinguish brightness mode from initial or stable operation.

The operating voltage is DC 9–18V. Check the intended circuit and confirm that both brightness modes respond correctly through the vehicle's controls. The initial and stable current ratings remain distinct from the high and low brightness functions.

3157 Socket and Application Matching

Select the 3157 connection required by the original lamp. Socket compatibility, circuit requirements, and space around the bulb should all be checked together. Secure seating provides the mechanical connection and establishes the position of the lighting head.

After fitting, confirm normal illumination through the vehicle's controls and check that the original cover closes correctly. For circuits with lamp monitoring or additional control functions, assess operation in the actual vehicle. A socket match alone does not establish compatibility with every electrical control system.