{"id":5845,"date":"2026-10-13T20:33:33","date_gmt":"2026-10-13T20:33:33","guid":{"rendered":"https:\/\/terraforge4x4.com\/?post_type=product&p=5845"},"modified":"2026-11-07T21:08:20","modified_gmt":"2026-11-07T21:08:20","slug":"auxbeam-b21-pro-standard-3157-leds-4-bulbs-and-4-c8-us-model-decoders","status":"publish","type":"product","link":"https:\/\/terraforge4x4.com\/nl\/product\/auxbeam-b21-pro-standard-3157-leds-4-bulbs-and-4-c8-us-model-decoders\/","title":{"rendered":"Auxbeam B21-PRO standard 3157 LEDs \u2014 4 bulbs and 4 C8 US-model decoders"},"content":{"rendered":"

Auxbeam B21-PRO 3157 White\/Amber Switchback LEDs \u2013 4 Bulbs<\/h3>\n

This is the 4-bulb<\/strong> T25\/3157 dual-colour switchback option, with the selectable C8 decoder\/resistor accessory variant for US models<\/strong>. The manufacturer’s main description covers the standard 3157 bulb; the exact vehicle-specific socket and decoder compatibility must be checked separately.<\/p>\n

Lighting Functions<\/h4>\n
    \n
  • White light for parking lights or daytime running lights, where the original bulb performs that function.<\/li>\n
  • Amber flashing light for turn signals.<\/li>\n
  • The dual-colour function requires an original socket\/wiring arrangement that combines parking\/DRL and turn-signal functions in one bulb.<\/li>\n<\/ul>\n

    Selected Configuration<\/h4>\n
      \n
    • 4 \u00d7 B21-PRO T25\/3157 white-and-amber switchback LED bulbs (based on the selected package quantity).<\/li>\n
    • Includes 4 C8 decoder\/resistor adapters, the manufacturer’s US-model-labelled 3157 option<\/strong>, in addition to the 4 bulbs. Exact GP00013062 variant and checkout explicitly identify both quantities. This is distinct from EU-labelled and CK variants. The manufacturer’s selected four-bulb image does not show the included C8 adapters.<\/li>\n
    • Manufacturer lists 3030 LED chips, fan cooling, white 6500 K and amber 3000 K.<\/li>\n
    • Auxbeam lists 4,000 lm per pair for the base product. Actual output depends on installation and operating mode.<\/li>\n<\/ul>\n

      Electrical specification and supply<\/h4>\n

      Auxbeam specifies 5 W white \/ 25 W amber per bulb and a 12\u201324 V electrical range while stating use in 12 V cars. This listing is for compatible 12 V applications; 24 V vehicle suitability is not confirmed.<\/p>\n

      Supplier order, not our own stock. Exact variant available at Auxbeam on 7 November 2026; availability and dispatch timing may change. Contact us for the current delivery estimate before ordering; no guaranteed delivery date is stated.<\/p>\n

      Important Fitment Information<\/h4>\n

      Check whether the vehicle requires standard 3157 or CK-style pinout, and verify bulb quantity, resistor compatibility and wiring before ordering. The manufacturer’s general text discusses US-model 3157 sockets, even where an EU-labelled C8 option is offered. The decoder option is not a guarantee against hyperflash or dashboard errors. E-mark approval and public-road suitability in Europe have not been confirmed.<\/p>","protected":false},"excerpt":{"rendered":"

      Four standard 3157 white\/amber switchback bulbs plus four C8 US-model-labelled adapters (GP00013062). Manufacturer photo shows the four bulbs; included C8 adapters are not pictured. Distinct from CK and EU-labelled variants; check exact socket and wiring. For compatible 12 V applications. Supplier order, not our own stock; ask for the current delivery estimate. No universal compatibility or error-free operation is claimed.<\/p>","protected":false},"featured_media":5840,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[77],"product_tag":[],"class_list":["post-5845","product","type-product","status-publish","has-post-thumbnail","product_cat-turn-signal-lights","first","onbackorder","taxable","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/terraforge4x4.com\/nl\/wp-json\/wp\/v2\/product\/5845","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/terraforge4x4.com\/nl\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/terraforge4x4.com\/nl\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/terraforge4x4.com\/nl\/wp-json\/wp\/v2\/comments?post=5845"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/terraforge4x4.com\/nl\/wp-json\/wp\/v2\/media\/5840"}],"wp:attachment":[{"href":"https:\/\/terraforge4x4.com\/nl\/wp-json\/wp\/v2\/media?parent=5845"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/terraforge4x4.com\/nl\/wp-json\/wp\/v2\/product_brand?post=5845"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/terraforge4x4.com\/nl\/wp-json\/wp\/v2\/product_cat?post=5845"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/terraforge4x4.com\/nl\/wp-json\/wp\/v2\/product_tag?post=5845"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}