{"product_id":"whelen-m4f","title":"Whelen M4F Warning Light - Clear","description":"\u003ch2\u003eWhelen M4F\u003c\/h2\u003e\u003cp\u003eThe M4 lighthead features a compact rectangular design that packs a powerful punch, delivering high-intensity illumination ideal for fire, EMS, law enforcement, and commercial vehicles. Like others in our popular M Series(R), the M4 features Linear Super-LED(R) technology for bright, consistent light output, providing superior visibility in critical situations. This lighthead incorporates Dynamic Variable Intensity™ (DVI™) light patterns, automatically adjusting brightness levels during nighttime operations. This feature enhances safety by gradually increasing or decreasing light intensity, effectively alerting oncoming traffic to the vehicle’s presence and creating safer scenes. Available in both single- or dual-color models, the M4 can be configured for primary warning or a combination of primary warning and scene lighting. Its hard-coated, impact-resistant lenses ensure durability against sand, sun, salt, and road chemicals, making it a reliable choice for any environment.\u003c\/p\u003e\u003ch3\u003eFeatures \u0026amp; Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCompact, dual-function design: sleek design combines powerful warning and driving lights in one unit\u003c\/li\u003e\n\u003cli\u003eAdvanced optics: unique lens shape and patented linear-led® designed reflector assembly\u003c\/li\u003e\n\u003cli\u003eUnmatched performance: delivers high-intensity warning with energy-efficient low current consumption\u003c\/li\u003e\n\u003cli\u003eCutting-edge technology: designed with industry-leading whelen technology for optimal performance and reliability\u003c\/li\u003e\n\u003cli\u003eLimited 10 year warranty\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eClear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e10 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e10 x 10 x 10 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eWhelen\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Part Number\u003c\/td\u003e\n\u003ctd\u003eM4F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cstyle\u003e\n.product-faq { margin: 2rem 0; }\n.product-faq__title { font-size: 1.25rem; margin-bottom: 1rem; }\n.faq-item { border: 1px solid #ddd; border-radius: 4px; margin-bottom: 0.5rem; }\n.faq-item__question { padding: 0.75rem 1rem; font-weight: 600; cursor: pointer; }\n.faq-item__answer { padding: 0 1rem 0.75rem; }\ndetails.faq-item \u003e summary { list-style: none; }\ndetails.faq-item \u003e summary::-webkit-details-marker { display: none; }\n.related-items-table { width: 100%; border-collapse: collapse; margin: 1rem 0; }\n.related-items-table th, .related-items-table td { border: 1px solid #ddd; padding: 0.5rem; text-align: left; vertical-align: top; }\n.related-items-table th { background: #f7f7f7; }\n\u003c\/style\u003e\u003csection class=\"product-faq\" aria-label=\"Frequently asked questions\"\u003e\u003ch2 class=\"product-faq__title\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails class=\"faq-item\"\u003e\u003csummary class=\"faq-item__question\"\u003eWhat color is this auto part?\u003c\/summary\u003e\u003cdiv class=\"faq-item__answer\"\u003e\u003cp\u003eThis is the Clear variant from Whelen.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails class=\"faq-item\"\u003e\u003csummary class=\"faq-item__question\"\u003eWhat stands out about this auto part?\u003c\/summary\u003e\u003cdiv class=\"faq-item__answer\"\u003e\u003cp\u003eKey details include Limited 10 year warranty. Review the full feature list and specifications on this page for complete details.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails class=\"faq-item\"\u003e\u003csummary class=\"faq-item__question\"\u003eHow much does this product weigh?\u003c\/summary\u003e\u003cdiv class=\"faq-item__answer\"\u003e\u003cp\u003eThis item weighs approximately 10 lb.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003c\/section\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Product\",\"name\":\"Whelen M4F - Clear\",\"description\":\"The M4 lighthead features a compact rectangular design that packs a powerful punch, delivering high-intensity illumination ideal for fire, EMS, law enforcement, and commercial vehicles. Like others in our popular M Series(R), the M4 features Linear Super-LED(R) technology for bright, consistent light output, providing superior visibility in critical situations. This lighthead incorporates Dynamic Variable Intensity™ (DVI™) light patterns, automatically adjusting brightness levels during nighttime operations. This feature enhances safety by gradually increasing or decreasing light intensity, effectively alerting oncoming traffic to the vehicle’s presence and creating safer scenes. Available in both single- or dual-color models, the M4 can be configured for primary warning or a combination of primary warning and scene lighting. Its hard-coated, impact-resistant lenses ensure durability against sand, sun, salt, and road chemicals, making it a reliable choice for any environment.\",\"sku\":\"WHEM4F\",\"mpn\":\"M4F\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Whelen\"},\"image\":\"https:\/\/sdk.vehiclepartimages.com\/ImageServerAPI?File=WHE\/Images\/M4F_AMBER_WHITE.png\",\"offers\":{\"@type\":\"Offer\",\"url\":\"https:\/\/www.rvautoparts.com\/products\/whelen-m4f\",\"priceCurrency\":\"USD\",\"price\":\"300.95\",\"availability\":\"https:\/\/schema.org\/InStock\",\"seller\":{\"@type\":\"Organization\",\"name\":\"RV \u0026 Auto Parts\"}}},{\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What color is this auto part?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"This is the Clear variant from Whelen.\"}},{\"@type\":\"Question\",\"name\":\"What stands out about this auto part?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Key details include Limited 10 year warranty. Review the full feature list and specifications on this page for complete details.\"}},{\"@type\":\"Question\",\"name\":\"How much does this product weigh?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"This item weighs approximately 10 lb.\"}}]}]}\u003c\/script\u003e","brand":"Whelen","offers":[{"title":"Default Title","offer_id":51997300719904,"sku":"WHEM4F","price":324.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0752\/8320\/2336\/files\/ImageServerAPI_9baf4c53-bea6-4873-930f-41d4bf7f43cc.png?v=1784332549","url":"https:\/\/www.rvautoparts.com\/products\/whelen-m4f","provider":"RV \u0026 Auto Parts","version":"1.0","type":"link"}