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Multiple Indicator Applications – Suitable for front indicators, rear indicators, turn signals and hazard lights where a PY21W, 581 or BAU15S LED bulb is required for compatible 12V vehicles. Bright Amber LED Performance – Featuring 21 SMD LEDs to produce a bright amber output with fast illumination, providing clear signalling and a modern upgrade over standard halogen indicator bulbs. Easy Plug & Play Installation – Designed as a direct replacement for compatible PY21W, 581 and BAU15S bulb fittings, allowing quick installation with no vehicle modifications required. Always check your existing bulb reference before ordering. Reliable LED Upgrade – Built with durable 21 SMD LED technology to deliver consistent brightness, reduced power consumption and dependable everyday performance for compatible indicator and hazard light applications. Trusted Argo Quality – Manufactured using quality automotive components for reliable, long-lasting LED performance in compatible 12V vehicles. Backed by a 12-month manufacturer's warranty.