{"product_id":"pal-lighting-multi-color-replacement-lamp-for-2t4-and-2l4-series-light-42-4wlcu","title":"PAL Lighting Multi Color Replacement Lamp for 2T4 and 2L4 Series Light | 42-4WLCU","description":"\u003cstyle\u003e\n  .atb-product-description {\n    font-family: Arial, Helvetica, sans-serif;\n    color: #243238;\n    line-height: 1.65;\n    max-width: 100%;\n    font-size: 16px;\n  }\n\n  .atb-product-description * {\n    box-sizing: border-box;\n  }\n\n  .atb-hero {\n    background: linear-gradient(135deg, #123f46 0%, #198278 100%);\n    color: #ffffff;\n    border-radius: 10px;\n    padding: 26px 28px;\n    margin-bottom: 22px;\n  }\n\n  .atb-hero h2 {\n    color: #ffffff;\n    font-size: 27px;\n    line-height: 1.25;\n    margin: 0 0 10px 0;\n    font-weight: 800;\n  }\n\n  .atb-hero p {\n    margin: 0;\n    font-size: 16px;\n    color: #ffffff;\n  }\n\n  .atb-badge {\n    display: inline-block;\n    background: #e37c3f;\n    color: #ffffff;\n    font-size: 12px;\n    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 border-radius: 9px;\n    padding: 21px 22px;\n    margin-top: 24px;\n  }\n\n  .atb-bottom h3 {\n    color: #ffffff;\n    margin: 0 0 8px 0;\n    font-size: 20px;\n  }\n\n  .atb-bottom p {\n    margin: 0;\n    color: #ffffff;\n  }\n\n  @media (max-width: 600px) {\n    .atb-hero {\n      padding: 21px 18px;\n    }\n\n    .atb-hero h2 {\n      font-size: 23px;\n    }\n\n    .atb-feature-grid {\n      grid-template-columns: 1fr;\n    }\n\n    .atb-spec-table td {\n      display: block;\n      width: 100% !important;\n    }\n\n    .atb-spec-table td:first-child {\n      border-bottom: 0;\n      padding-bottom: 4px;\n    }\n\n    .atb-spec-table td:last-child {\n      padding-top: 4px;\n    }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"atb-product-description\"\u003e\n\u003c!-- HERO --\u003e\n\u003cdiv class=\"atb-hero\"\u003e\n\u003cdiv class=\"atb-badge\"\u003eGenuine PAL Lighting Replacement Lamp\u003c\/div\u003e\n\u003ch2\u003ePAL Lighting Multi-Color Replacement Lamp | 42-4WLCU\u003c\/h2\u003e\n\u003cp\u003eRestore the color lighting in compatible \u003cstrong\u003ePAL Treo 2T4 and 2L4 pool and spa lights\u003c\/strong\u003e with the genuine PAL Lighting \u003cstrong\u003e42-4WLCU multi-color replacement lamp\u003c\/strong\u003e. Designed specifically for the \u003cstrong\u003eLAU-4C 4-wire lamp configuration\u003c\/strong\u003e, this OEM replacement allows compatible fixtures to be serviced without replacing the entire light assembly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- QUICK ANSWER --\u003e\n\u003cdiv class=\"atb-green-box\"\u003e\n\u003cstrong\u003eQuick Answer:\u003c\/strong\u003e PAL part \u003cstrong\u003e42-4WLCU\u003c\/strong\u003e is the manufacturer replacement multi-color LED lamp for compatible \u003cstrong\u003ePAL Treo 2T4 and 2L4 fixtures using the LAU-4C configuration\u003c\/strong\u003e. It should not be confused with \u003cstrong\u003e42-4WLDU\u003c\/strong\u003e, which PAL identifies separately for LAU-4D applications.\u003c\/div\u003e\n\u003c!-- INTRO --\u003e\n\u003cdiv class=\"atb-section\"\u003e\n\u003ch3\u003eOEM Replacement for PAL Treo 4-Wire Lighting\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003ePAL Lighting 42-4WLCU\u003c\/strong\u003e is a genuine replacement lamp designed for select PAL Treo pool and spa lighting systems. It replaces the internal multi-color lamp assembly in compatible \u003cstrong\u003e2T4 and 2L4\u003c\/strong\u003e fixtures equipped with the \u003cstrong\u003eLAU-4C\u003c\/strong\u003e style lamp.\u003c\/p\u003e\n\u003cp\u003eFor existing installations where the fixture body, cable and control system remain serviceable, replacing the lamp can provide a more targeted repair than replacing the entire underwater light.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- FEATURE GRID --\u003e\n\u003cdiv class=\"atb-feature-grid\"\u003e\n\u003cdiv class=\"atb-feature-card\"\u003e\n\u003cstrong\u003eGenuine PAL Part\u003c\/strong\u003e \u003cspan\u003e OEM PAL Lighting replacement component, part number 42-4WLCU. \u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"atb-feature-card\"\u003e\n\u003cstrong\u003eMulti-Color LED\u003c\/strong\u003e \u003cspan\u003e Restores multi-color operation in compatible PAL Treo lighting systems. \u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"atb-feature-card\"\u003e\n\u003cstrong\u003eLAU-4C Configuration\u003c\/strong\u003e \u003cspan\u003e Specifically identified by PAL for the LAU-4C 4-wire lamp family. \u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"atb-feature-card\"\u003e\n\u003cstrong\u003eTreo 2T4 \/ 2L4\u003c\/strong\u003e \u003cspan\u003e Designed for compatible PAL Treo 2T4 and 2L4 pool and spa light assemblies. \u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- DROPDOWN: SPECS --\u003e\n\u003cdetails class=\"atb-details\"\u003e\n\u003csummary\u003eSpecifications\u003c\/summary\u003e\n\u003cdiv class=\"atb-details-content\"\u003e\n\u003ctable class=\"atb-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003ePAL Lighting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Part Number\u003c\/td\u003e\n\u003ctd\u003e42-4WLCU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eReplacement multi-color LED lamp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLamp Configuration\u003c\/td\u003e\n\u003ctd\u003eLAU-4C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWiring Family\u003c\/td\u003e\n\u003ctd\u003ePAL 4-wire lighting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Fixture Family\u003c\/td\u003e\n\u003ctd\u003ePAL Treo 2T4 \/ 2L4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLight Type\u003c\/td\u003e\n\u003ctd\u003eMulti-color\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003ePool and spa lighting replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c!-- DROPDOWN: COMPATIBILITY --\u003e\n\u003cdetails class=\"atb-details\"\u003e\n\u003csummary\u003eCompatibility \u0026amp; Fitment\u003c\/summary\u003e\n\u003cdiv class=\"atb-details-content\"\u003e\n\u003cp\u003ePAL identifies the \u003cstrong\u003e42-4WLCU\u003c\/strong\u003e specifically for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePAL Treo 2T4 lighting systems\u003c\/li\u003e\n\u003cli\u003ePAL Treo 2L4 lighting systems\u003c\/li\u003e\n\u003cli\u003eLAU-4C replacement lamp applications\u003c\/li\u003e\n\u003cli\u003eCompatible PAL 4-wire lighting installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"atb-orange-box\"\u003e\n\u003cstrong\u003eImportant:\u003c\/strong\u003e\u003cbr\u003eVerify the identification of the existing lamp before ordering. PAL manufactures more than one four-wire replacement lamp configuration, and similar-looking lamps may not be electrically or operationally interchangeable.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c!-- DROPDOWN: C VS D --\u003e\n\u003cdetails class=\"atb-details\"\u003e\n\u003csummary\u003eLAU-4C vs. LAU-4D: Which Lamp Do I Need?\u003c\/summary\u003e\n\u003cdiv class=\"atb-details-content\"\u003e\n\u003cp\u003ePAL lists the \u003cstrong\u003eLAU-4C and LAU-4D as separate replacement lamp configurations\u003c\/strong\u003e. They should not be treated as interchangeable simply because both belong to PAL's four-wire lighting family.\u003c\/p\u003e\n\u003ctable class=\"atb-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eLAU-4C\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e42-4WLCU\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLAU-4D\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e42-4WLDU\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eIf the existing light or lamp is marked \u003cstrong\u003eLAU-4C\u003c\/strong\u003e, the 42-4WLCU is the appropriate PAL replacement lamp.\u003c\/p\u003e\n\u003cp\u003eIf the existing lamp is marked \u003cstrong\u003eLAU-4D\u003c\/strong\u003e, use the appropriate LAU-4D replacement instead.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c!-- DROPDOWN: OLD POWERITE --\u003e\n\u003cdetails class=\"atb-details\"\u003e\n\u003csummary\u003eReplacing an Older PAL \/ Powerite LAU-4 Lamp\u003c\/summary\u003e\n\u003cdiv class=\"atb-details-content\"\u003e\n\u003cp\u003eSome older PAL and Powerite lighting installations may have lamps marked simply \u003cstrong\u003eLAU-4\u003c\/strong\u003e rather than clearly identifying a later LAU-4C or LAU-4D designation.\u003c\/p\u003e\n\u003cp\u003eBecause PAL has produced multiple four-wire lamp versions, an older \u003cstrong\u003eLAU-4 marking alone should not be used as the only compatibility check\u003c\/strong\u003e. The existing lamp, fixture and lighting controller should be identified before ordering.\u003c\/p\u003e\n\u003cdiv class=\"atb-orange-box\"\u003e\n\u003cstrong\u003eHave an older Powerite LAU-4?\u003c\/strong\u003e\u003cbr\u003eIf your existing lamp is marked only \"LAU-4 POWERITE,\" we recommend confirming the original fixture and controller configuration before purchasing a replacement lamp.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c!-- DROPDOWN: HOW TO IDENTIFY --\u003e\n\u003cdetails class=\"atb-details\"\u003e\n\u003csummary\u003eHow to Identify the Correct Replacement\u003c\/summary\u003e\n\u003cdiv class=\"atb-details-content\"\u003e\n\u003cp\u003eBefore ordering a replacement PAL lamp, check the existing equipment for identifying information. Useful information includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePart number molded or printed on the existing lamp\u003c\/li\u003e\n\u003cli\u003eLAU-4C, LAU-4D or other lamp designation\u003c\/li\u003e\n\u003cli\u003eTreo fixture model number\u003c\/li\u003e\n\u003cli\u003eLighting controller or transformer model\u003c\/li\u003e\n\u003cli\u003eNumber and arrangement of electrical connections\u003c\/li\u003e\n\u003cli\u003ePhotos of both the front and rear of the existing lamp\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eConfirming these details before purchase helps prevent ordering a physically similar but incompatible lamp.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c!-- DROPDOWN: INSTALLATION --\u003e\n\u003cdetails class=\"atb-details\"\u003e\n\u003csummary\u003eInstallation \u0026amp; Replacement Guidance\u003c\/summary\u003e\n\u003cdiv class=\"atb-details-content\"\u003e\n\u003cp\u003eThe 42-4WLCU is intended as a service replacement component within a compatible PAL Treo light. Installation should follow PAL Lighting service and installation procedures for the applicable fixture.\u003c\/p\u003e\n\u003cdiv class=\"atb-orange-box\"\u003e\n\u003cstrong\u003ePool Electrical Safety:\u003c\/strong\u003e\u003cbr\u003eDisconnect electrical power to the pool lighting system before servicing. Underwater lighting equipment must be installed and serviced in accordance with the manufacturer's instructions and applicable electrical and pool safety codes. If you are not experienced with underwater pool lighting, installation should be performed by a qualified pool or electrical professional.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c!-- DROPDOWN: FAQ --\u003e\n\u003cdetails class=\"atb-details\"\u003e\n\u003csummary\u003eFrequently Asked Questions\u003c\/summary\u003e\n\u003cdiv class=\"atb-details-content\"\u003e\n\u003cdiv class=\"atb-faq-q\"\u003eWhat does the PAL 42-4WLCU replace?\u003c\/div\u003e\n\u003cp\u003ePAL identifies 42-4WLCU as the multi-color replacement lamp for compatible Treo \u003cstrong\u003e2T4 and 2L4 fixtures using the LAU-4C configuration\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cdiv class=\"atb-faq-q\"\u003eIs 42-4WLCU a complete pool light?\u003c\/div\u003e\n\u003cp\u003eNo. The 42-4WLCU is a replacement lamp component for a compatible existing PAL light assembly. It is not a complete new fixture with cable and wall fitting.\u003c\/p\u003e\n\u003cdiv class=\"atb-faq-q\"\u003eIs 42-4WLCU a multi-color lamp?\u003c\/div\u003e\n\u003cp\u003eYes. PAL identifies this part as a multi-color replacement lamp.\u003c\/p\u003e\n\u003cdiv class=\"atb-faq-q\"\u003eDoes 42-4WLCU fit PAL Treo 2T4?\u003c\/div\u003e\n\u003cp\u003eYes, when the existing 2T4 fixture uses the compatible \u003cstrong\u003eLAU-4C\u003c\/strong\u003e lamp configuration.\u003c\/p\u003e\n\u003cdiv class=\"atb-faq-q\"\u003eDoes 42-4WLCU fit PAL Treo 2L4?\u003c\/div\u003e\n\u003cp\u003eYes. PAL specifically lists the 2L4 among the applications for the LAU-4C 42-4WLCU replacement lamp.\u003c\/p\u003e\n\u003cdiv class=\"atb-faq-q\"\u003eIs 42-4WLCU the same as 42-4WLDU?\u003c\/div\u003e\n\u003cp\u003eNo. PAL identifies \u003cstrong\u003e42-4WLCU\u003c\/strong\u003e for LAU-4C applications and \u003cstrong\u003e42-4WLDU\u003c\/strong\u003e for LAU-4D applications. They should not be assumed interchangeable.\u003c\/p\u003e\n\u003cdiv class=\"atb-faq-q\"\u003eWill this replace an old lamp marked only LAU-4?\u003c\/div\u003e\n\u003cp\u003ePossibly, depending on the original PAL or Powerite system, but an LAU-4 marking by itself is not enough to guarantee compatibility. Older systems should be identified by fixture and controller model before ordering.\u003c\/p\u003e\n\u003cdiv class=\"atb-faq-q\"\u003eWhat information should I provide to confirm compatibility?\u003c\/div\u003e\n\u003cp\u003eThe most useful information is the model number of the existing fixture or controller along with clear photos of the front and rear of the original lamp.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c!-- WHY OEM --\u003e\n\u003cdiv class=\"atb-section\"\u003e\n\u003ch3\u003eWhy Use the Correct PAL Replacement Lamp?\u003c\/h3\u003e\n\u003cp\u003ePool and spa LED lighting systems rely on the correct lamp, driver and control configuration to produce proper color operation. Using the correct PAL replacement part helps maintain the electrical and control relationship intended for the original lighting system.\u003c\/p\u003e\n\u003cp\u003eBecause multiple generations of PAL four-wire lighting exist, matching the exact lamp configuration is especially important when servicing older Treo or Powerite installations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- SUPPORT --\u003e\n\u003cdiv class=\"atb-bottom\"\u003e\n\u003ch3\u003eNot Sure Which PAL Lamp You Have?\u003c\/h3\u003e\n\u003cp\u003eIf your existing lamp is marked LAU-4, LAU-4C, LAU-4D or has an older Powerite marking, Aqua Terra Backyard can help identify the correct replacement. Send us the model information from your existing light or controller along with clear photos of the front and rear of the lamp before ordering.\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- SEO SUPPORT --\u003e\n\u003cdiv style=\"font-size: 13px; color: #68767b; margin-top: 22px;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"PAL Lighting","offers":[{"title":"Default Title","offer_id":52597359280402,"sku":"42-4WLCU","price":179.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/2279\/1186\/files\/42-4WLCU-2.jpg?v=1786555583","url":"https:\/\/www.aquaterrabackyard.com\/products\/pal-lighting-multi-color-replacement-lamp-for-2t4-and-2l4-series-light-42-4wlcu","provider":"Aqua Terra Backyard","version":"1.0","type":"link"}