{"id":5839,"date":"2026-10-13T20:33:31","date_gmt":"2026-10-13T20:33:31","guid":{"rendered":"https:\/\/terraforge4x4.com\/?post_type=product&#038;p=5839"},"modified":"2026-11-07T20:57:34","modified_gmt":"2026-11-07T20:57:34","slug":"auxbeam-b21-pro-3157-us-ck-white-amber-leds-4-bulbs-and-4-c8-decoders","status":"publish","type":"product","link":"https:\/\/terraforge4x4.com\/nl\/product\/auxbeam-b21-pro-3157-us-ck-white-amber-leds-4-bulbs-and-4-c8-decoders\/","title":{"rendered":"Auxbeam B21-PRO 3157 US-CK white\/amber LEDs \u2014 4 bulbs and 4 C8 decoders"},"content":{"rendered":"<h3>Auxbeam B21-PRO 3157 US-CK White\/Amber Switchback LEDs \u2013 4 Bulbs<\/h3>\n<p>This is the <strong>4-bulb 3157 US-CK switchback package<\/strong>, with the selected C8 decoder\/resistor option. It is intended for vehicles where a single original bulb performs both the parking\/daytime-running-light and turn-signal functions.<\/p>\n<h4>Lighting Functions<\/h4>\n<ul>\n<li>White light for parking lamps or daytime running lights where the original circuit supports that function.<\/li>\n<li>Amber flashing light for turn-signal use.<\/li>\n<li>Dual-colour switchback operation requires compatible combined-function wiring.<\/li>\n<\/ul>\n<h4>Selected Configuration and Manufacturer Information<\/h4>\n<ul>\n<li>Selected quantity: <strong>4 \u00d7 Auxbeam B21-PRO 3157 US-CK white\/amber LED bulbs<\/strong>.<\/li>\n<li>This exact GP00013934 variant selects <strong>4 C8 decoder\/resistor adapters for 3157 US-CK<\/strong> and a <strong>4-bulb package<\/strong>. Both quantities are explicitly stated in the manufacturer variant options and checkout.<\/li>\n<li>The manufacturer uses a representative photo showing one pair of bulbs and two adapters. The purchased package contains four bulbs and four C8 adapters, as stated above.<\/li>\n<li>Auxbeam lists 3030 LED chips, fan cooling, 6500 K white and 3000 K amber for this series.<\/li>\n<li>Manufacturer-rated light output: 4,000 lm <strong>per pair<\/strong> for the base switchback product; not a verified installed output.<\/li>\n<\/ul>\n<h4>Electrical specification and supply<\/h4>\n<p>Auxbeam specifies 5 W white \/ 25 W amber per bulb, 32 chips per bulb (8 white and 24 amber), 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<p>Ordered from the supplier; not held in our own stock. Auxbeam listed this exact variant as available 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<h4>Compatibility and Approval<\/h4>\n<p>Check the vehicle&#8217;s original bulb type and 3157 US-CK socket pin arrangement before ordering. Standard and CK pinouts may differ, so similar-looking bulb bases are not a guarantee of compatibility. The selected C8 option does not guarantee freedom from hyperflash or dashboard errors. European E-mark approval and public-road suitability have not been verified.<\/p>","protected":false},"excerpt":{"rendered":"<p>Four Auxbeam B21-PRO 3157 US-CK white\/amber switchback bulbs plus four C8 decoder\/resistor adapters (GP00013934). Manufacturer photo shows a representative pair; this package contains four of each. For compatible 12 V combined-function CK circuits. Supplier order, not our own stock; ask for the current delivery estimate. Decoders do not guarantee compatibility or error-free operation.<\/p>","protected":false},"featured_media":5837,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[77],"product_tag":[],"class_list":["post-5839","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\/5839","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=5839"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/terraforge4x4.com\/nl\/wp-json\/wp\/v2\/media\/5837"}],"wp:attachment":[{"href":"https:\/\/terraforge4x4.com\/nl\/wp-json\/wp\/v2\/media?parent=5839"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/terraforge4x4.com\/nl\/wp-json\/wp\/v2\/product_brand?post=5839"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/terraforge4x4.com\/nl\/wp-json\/wp\/v2\/product_cat?post=5839"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/terraforge4x4.com\/nl\/wp-json\/wp\/v2\/product_tag?post=5839"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}