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LED bulb Amio 1157 BAY15D P21/5W 3020 24SMD white (AMI-02798)
Amio LED bulb 1157 (BAY15D) P21/5W with 24 SMD 3020 white diodes is a direct-replacement automotive twin-filament lamp for applications that require both a 21/5W output levels. It is designed for brake/taillight and indicator circuits where a compact dual-contact base is needed. The lamp provides rapid turn-on, reduced power consumption and built-in CANbus compatibility to minimise false bulb-failure warnings on vehicles with monitoring systems.
This LED bulb offers significantly lower energy draw compared with conventional incandescent 21/5W bulbs while delivering clear white light from multiple 3020 SMD chips. The dual-filament design reproduces both parking/tail and brake/indicator functions from a single BAY15D base, and the fast response of LEDs improves visibility in braking situations. CANbus compatibility reduces the likelihood of error messages on modern vehicles without additional resistors.
Ensure the vehicle power is switched off before replacing bulbs. Remove the existing 1157/BAY15D bulb from the socket and insert the LED bulb, aligning the dual contacts correctly to reproduce both filament functions. After installation, verify that tail, brake and indicator functions operate correctly. If the lamp does not illuminate, remove and rotate 180° in the socket to correct contact orientation.
For vehicles with sensitive monitoring systems, test the lamp after installation for any error messages. If the vehicle still indicates a fault, consult vehicle documentation; some systems may require additional load simulation or a dedicated decoder despite built-in compatibility. Avoid using the lamp in non-automotive mains circuits and ensure correct polarity and secure seating in the socket.
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