{"product_id":"2x-bay9s-h21w-10-smd-led-front-rear-indicator-reverse-driving-side-light-bulb-white-6000k","title":"Universal H21W BAY9S LED Reverse Light, 10-SMD, 6000K Xenon White","description":"\u003cdiv\u003e\n\u003cp\u003eUpgrade your vehicle’s rear and surround lighting with the Universal H21W BAY9S LED Reverse Light kit from ANGRONG. This compact, high-power two-pack uses 10 SMD 5630 LEDs per bulb to deliver a bright xenon-white 6000K glow, improving visibility for reversing, parking, and signaling in low-light conditions. Designed for universal BAY9S sockets and 12V systems, these bulbs plug in with no wiring or modification required, giving you a fast, reliable upgrade over traditional incandescent lamps.\u003c\/p\u003e \u003cp\u003eWhy this matters: clearer rear illumination reduces blind spots when backing into tight spaces, and a crisp white light enhances the perception of your signals to other drivers. The 4W-per-bulb design provides strong brightness without excessive draw on your electrical system, helping you save battery power while maintaining excellent visibility. The compact 37mm length, 12mm width, and 9.2mm OEM-style socket ensure a snug fit in many light housings. Keep in mind BAY9S variants can differ slightly from stock bulbs, so please verify compatibility with your vehicle’s housing before purchasing. Although not a CAN-Bus lamp, some cars with CAN-Bus wiring may still show an error message; if it occurs, a load resistor installed in the circuit can resolve it. If a bulb doesn’t light after installation, try reversing its polarity. Cross reference: 435 H21W BAY9s 433D 6021 68191 64136 12356 2-B miniature bayonet.\u003c\/p\u003e \u003ch3\u003eBenefits \u0026amp; Tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eEffortless plug-and-play upgrade—no wiring or tools required, just swap and go for immediate improved visibility.\u003c\/li\u003e \u003cli\u003eVersatile lighting for multiple roles: reverse light, side indicator, parking light, driving light, or DRL, all with a bright xenon-white glow.\u003c\/li\u003e \u003cli\u003eEnergy-efficient and long-lasting—4W per lamp with 320 lumens, delivering bright output without excessive power draw or frequent replacements.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eProduct specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eBulb type: H21W BAY9s (435 H21W BAY9s) – 2-B miniature bayonet\u003c\/li\u003e \u003cli\u003eLED technology: 10 x 5630 SMD per bulb\u003c\/li\u003e \u003cli\u003eLight color: Xenon white, 6000K\u003c\/li\u003e \u003cli\u003eVoltage: 12V DC\u003c\/li\u003e \u003cli\u003eWattage: 4W per lamp\u003c\/li\u003e \u003cli\u003eLumen output: ~320 lumens per lamp\u003c\/li\u003e \u003cli\u003eSocket compatibility: BAY9s \/ 435 H21W\u003c\/li\u003e \u003cli\u003eSize (L x W): 37mm x 12mm; OEM socket opening ~9.2mm\u003c\/li\u003e \u003cli\u003ePackage: 2 bulbs included\u003c\/li\u003e \u003cli\u003eApplications: Side Light, Indicator, Parking, Driving Light, Reverse Light, Daytime Running Light (DRL)\u003c\/li\u003e \u003cli\u003eCross reference: 435 H21W BAY9s 433D 6021 68191 64136 12356 2-B miniature bayonet\u003c\/li\u003e \u003cli\u003eOrigin: Mainland China\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePackage includes:\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e2x H21W BAY9s 10 SMD 5630 LED indicator reverse sidelight light bulbs xenon white\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWarnings \/ Reminders\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eNot a CAN-Bus lamp by design, but some vehicles with CAN-Bus wiring may still display an error; if this happens, consider adding a load resistor to the circuit.\u003c\/li\u003e \u003cli\u003eConfirm exact bulb type and housing compatibility before purchasing, as BAY9S sizes can differ slightly from stock bulbs.\u003c\/li\u003e \u003cli\u003eIf the lamp does not illuminate after installation, check polarity and re-connect, ensuring a proper seating in the socket.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eAll electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.\u003c\/p\u003e \u003cp\u003eProviding reliable lighting solutions since 2002 at intercyprus.com.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"InterCyprus Trading Ltd","offers":[{"title":"WHITE \/ 6000K","offer_id":52302392590678,"sku":"1005010332575433-WHITE-6000K","price":7.47,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0530\/0604\/1274\/files\/HTB1vj13KeuSBuNjy1Xcq6AYjFXai.webp?v=1768082980","url":"https:\/\/www.intercyprus.com\/products\/2x-bay9s-h21w-10-smd-led-front-rear-indicator-reverse-driving-side-light-bulb-white-6000k","provider":"InterCyprus Trading Ltd","version":"1.0","type":"link"}