{"product_id":"m8s-series-h4-dual-fan-cooled-led-headlight-bulbs","title":"M8S Series H4 Dual Fan Cooled LED Headlight Bulbs","description":"\u003ch1\u003eProduct Specifications\u003c\/h1\u003e\n\u003ctable style=\"border-collapse: collapse;\" align=\"center\" width=\"100%\" cellspacing=\"0\" cellpadding=\"10\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; border-left: 0px solid transparent; border-right: 0px solid transparent;\" align=\"left\"\u003e\n\u003cspan style=\"color: #888888; font-size: small;\"\u003eMODEL NO.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cb\u003eM8S-H4\u003c\/b\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; border-left: 0px solid transparent; border-right: 0px solid transparent;\" align=\"left\"\u003e\n\u003cspan style=\"color: #888888; font-size: small;\"\u003ePRODUCT TYPE\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cb\u003eLED Headlight Bulbs\u003c\/b\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; border-left: 0px solid transparent; border-right: 0px solid transparent;\" align=\"left\"\u003e\n\u003cspan style=\"color: #888888; font-size: small;\"\u003eSOCKET TYPE\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cb\u003eH4 High\/Low Beam\u003c\/b\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; border-left: 0px solid transparent; border-right: 0px solid transparent;\" align=\"left\"\u003e\n\u003cspan style=\"color: #888888; font-size: small;\"\u003eMOUNTING COLLAR\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cb\u003eFixed H4 Mounting Collar\u003c\/b\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; border-left: 0px solid transparent; border-right: 0px solid transparent;\" align=\"left\"\u003e\n\u003cspan style=\"color: #888888; font-size: small;\"\u003eLED QUANTITY \/ CHIP\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cb\u003e8 pcs Customized 7035 LED Chips\u003c\/b\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; border-left: 0px solid transparent; border-right: 0px solid transparent;\" align=\"left\"\u003e\n\u003cspan style=\"color: #888888; font-size: small;\"\u003eOPERATING VOLTAGE\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cb\u003eDC 9-18V\u003c\/b\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; border-left: 0px solid transparent; border-right: 0px solid transparent;\" align=\"left\"\u003e\n\u003cspan style=\"color: #888888; font-size: small;\"\u003eCOLOR TEMPERATURE\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cb\u003e6500K White\u003c\/b\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; border-left: 0px solid transparent; border-right: 0px solid transparent;\" align=\"left\"\u003e\n\u003cspan style=\"color: #888888; font-size: small;\"\u003eLIGHT-EMITTING ANGLE\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cb\u003e360°\u003c\/b\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; border-left: 0px solid transparent; border-right: 0px solid transparent;\" align=\"left\"\u003e\n\u003cspan style=\"color: #888888; font-size: small;\"\u003ePOLARITY REQUIREMENT\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cb\u003eNo Polarity Restriction\u003c\/b\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; border-left: 0px solid transparent; border-right: 0px solid transparent;\" align=\"left\"\u003e\n\u003cspan style=\"color: #888888; font-size: small;\"\u003eINPUT CURRENT\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cb\u003e3.1 ± 0.4 A @ 13.5 V\u003c\/b\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; border-left: 0px solid transparent; border-right: 0px solid transparent;\" align=\"left\"\u003e\n\u003cspan style=\"color: #888888; font-size: small;\"\u003eHIGH BEAM OUTPUT\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cb\u003eInitial: 3,289 lm \/ 38.27 W\u003cbr\u003eStable: 2,649 lm \/ 32.61 W\u003c\/b\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; border-left: 0px solid transparent; border-right: 0px solid transparent;\" align=\"left\"\u003e\n\u003cspan style=\"color: #888888; font-size: small;\"\u003eLOW BEAM OUTPUT\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cb\u003eInitial: 2,734 lm \/ 38.97 W\u003cbr\u003eStable: 2,209 lm \/ 34.81 W\u003c\/b\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; border-left: 0px solid transparent; border-right: 0px solid transparent;\" align=\"left\"\u003e\n\u003cspan style=\"color: #888888; font-size: small;\"\u003eHEAT DISSIPATION\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cb\u003eTop and Bottom Fans + Dual Copper Heat Pipes\u003c\/b\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; border-left: 0px solid transparent; border-right: 0px solid transparent;\" align=\"left\"\u003e\n\u003cspan style=\"color: #888888; font-size: small;\"\u003eHOUSING MATERIAL\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cb\u003eADC12 Aluminum Body\u003c\/b\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0805\/8159\/1340\/files\/1_961f57a0-eead-4552-8e5c-91f9144a12d1.jpg?v=1757505810\" alt=\"M8S LED Headlight Bulb\"\u003e\u003c\/p\u003e\n\u003ch1\u003eM8S Series H4 Dual Fan Cooled LED Headlight Bulbs\u003c\/h1\u003e\n\n\u003cp\u003eThe M8S Series H4 LED Headlight Bulbs are designed for compatible H4 headlamp applications that require separate high- and low-beam operation in one LED bulb. The H4 configuration uses eight customized 7035 LED chips, a fixed H4 mounting collar, and a no-polarity connection design. It operates on DC 9-18V and is specified with 6500K white light for a crisp, modern lighting appearance.\u003c\/p\u003e\n\n\u003cp\u003eHigh and low beam output are listed separately to give a clear view of real operating data. High beam is specified at 3,289 lm \/ 38.27 W initially and 2,649 lm \/ 32.61 W after stabilization. Low beam is specified at 2,734 lm \/ 38.97 W initially and 2,209 lm \/ 34.81 W after stabilization. Input current is 3.1 ± 0.4 A at 13.5V.\u003c\/p\u003e\n\n\u003ch2\u003eDual-Fan Heat Dissipation System\u003c\/h2\u003e\n\n\u003cp\u003eThe M8S cooling structure uses a fan at the top of the lamp body and a second fan at the lower section. This top-and-bottom airflow arrangement is designed to move air through the lamp structure from more than one direction, helping heat leave the LED and rear housing areas during operation.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0805\/8159\/1340\/files\/6_0c8f3bde-e745-44ed-81f2-d84fe2f432d3.jpg?v=1757505809\" alt=\"Powerful Thermal\"\u003e\u003c\/p\u003e\n\u003cp\u003eDual copper heat pipes form the main heat-transfer path inside the body. They move heat away from the LED source and distribute it through the lamp structure, rather than leaving thermal load concentrated around the emitting surfaces. This provides a more complete thermal route for the high- and low-beam functions of the H4 bulb.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0805\/8159\/1340\/files\/2_0a75e989-f068-45ac-a2a0-7014101eab0f.jpg?v=1757505810\" alt=\"Aluminum Housing\"\u003e\u003c\/p\u003e\n\u003cp\u003eAn ADC12 aluminum body supports passive heat release around the heat-pipe and fan system. Together, the dual fans, dual copper heat pipes, and aluminum housing create a compact cooling architecture intended to support stable operation during extended use without relying on an oversized external heat sink.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0805\/8159\/1340\/files\/7_9846aff8-2622-4ce8-8020-6e1c85f43cbe.jpg?v=1757505809\" alt=\"Liquid Heat Pipe System\"\u003e\u003c\/p\u003e\n\u003ch2\u003eH4 High and Low Beam Output\u003c\/h2\u003e\n\n\u003cp\u003eThe M8S-H4 keeps high and low beam data distinct. In high beam mode, the initial output is 3,289 lm at 38.27 W, followed by a stable output of 2,649 lm at 32.61 W. In low beam mode, the initial output is 2,734 lm at 38.97 W, followed by a stable output of 2,209 lm at 34.81 W.\u003c\/p\u003e\n\n\u003cp\u003eShowing both initial and stable values makes the performance data easier to understand after the lamp has reached normal operating conditions. The specified 3.1 ± 0.4 A input current at 13.5V and DC 9-18V operating range should be considered together with the vehicle's electrical condition and the available space behind the original H4 headlamp.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0805\/8159\/1340\/files\/5_657e25de-2fef-408f-b8b5-b3611e05a951.jpg?v=1757505809\" alt=\"High Lumen Output\"\u003e\u003c\/p\u003e\n\u003ch2\u003eCustomized 7035 LEDs and 6500K White Light\u003c\/h2\u003e\n\n\u003cp\u003eThe H4 version uses eight customized 7035 LED chips arranged for its dedicated high- and low-beam configuration. The 360° light-emitting angle describes the LED source layout around the bulb, while the fixed H4 mounting position helps maintain a consistent relationship between the light source and the original headlamp optics.\u003c\/p\u003e\n\n\u003cp\u003eThe product is specified as 6500K white light. This cool-white appearance gives the lamp a clean LED character while retaining separate high- and low-beam operating modes. The final on-road result will always depend on the vehicle's original reflector or projector design and correct headlamp adjustment.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0805\/8159\/1340\/files\/4_eef3cb8a-f16d-4f11-b221-b4c05c695ec9.jpg?v=1787888931\" alt=\"Automotive-Grade LED Chip\"\u003e\u003c\/p\u003e\n\u003ch2\u003eCompact H4-Style Mounting Geometry\u003c\/h2\u003e\n\n\u003cp\u003eThe M8S-H4 has a fixed H4 mounting collar rather than an adjustable collar. Its integrated body is designed around H4-style bulb geometry, with an overall height of approximately 80.3 mm and an upper housing diameter of approximately 22.5 mm. This compact form helps installers assess available clearance before fitting the bulb.\u003c\/p\u003e\n\n\u003cp\u003eThe design intent is to place the LED illumination area close to the original H4 bulb position while keeping the lamp body self-contained. Before installation, confirm the original socket type, dust-cover clearance, connector position, and available internal headlamp space for the specific vehicle.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0805\/8159\/1340\/files\/3_0ae3734c-f6ed-40fd-8280-e13d23d1883e.jpg?v=1757505810\" alt=\"Easy Installation\"\u003e\u003c\/p\u003e\n\u003ch2\u003eOptical Alignment for Compatible H4 Housings\u003c\/h2\u003e\n\n\u003cp\u003eCorrect optical alignment is especially important for H4 applications because both high and low beam functions are integrated into one bulb. The fixed collar and compact LED layout are intended to support appropriate source positioning in compatible H4 housings. After installation, check the beam aim against the vehicle manufacturer's headlamp adjustment requirements.\u003c\/p\u003e\n\n\u003cp\u003eHeadlamp optics vary between vehicles, so the final pattern should be evaluated in the installed housing rather than assumed from the bulb alone. Correct mounting, secure electrical connection, and proper aiming help achieve the most useful result from the high- and low-beam configuration.\u003c\/p\u003e\n\n\u003ch2\u003eCertification Documentation\u003c\/h2\u003e\n\n\u003cp\u003eThe M8S series presentation includes CE and RoHS Certificates of Conformity. Documentation requirements can vary by destination market and applicable product configuration.\u003c\/p\u003e\n\n\u003cp\u003eThe M8S-H4 combines a compact H4 format, dual-fan cooling, dual copper heat pipes, ADC12 aluminum construction, customized 7035 LEDs, and clearly separated high- and low-beam output data for compatible H4 headlamp applications.\u003c\/p\u003e","brand":"CN360 LED","offers":[{"title":"Default Title","offer_id":53985420902700,"sku":"M8S-H4","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0805\/8159\/1340\/files\/01_262a63da-8e9c-47ce-81d4-18947fa193f1.jpg?v=1787896982","url":"https:\/\/cn360led.com\/es\/products\/m8s-series-h4-dual-fan-cooled-led-headlight-bulbs","provider":"CN360 LED","version":"1.0","type":"link"}