{"product_id":"12v-20w-mr11-30-gu4-2800k-35x35mm-halogeenikohdelamppu","title":"Halogen spotlight MR11 GU4 12V 20W 2800K 30° – 35x35mm clear","description":"\u003cp\u003eThis is a traditional MR11 halogen spotlight lamp, used to replace broken MR11 halogens in luminaires. Featuring 12 V halogen technology, 20 W power, and a 30° beam angle—it's suitable for older MR11 luminaires where LED alternatives don't work (e.g., compatibility issues with transformers or dimmers). The 2800 K colour temperature produces a warm and familiar halogen tone.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e12 V halogen—requires a 12V transformer. GU4 base (MR11). The lifespan is typical for halogen (approx. 2000 h), significantly shorter than LEDs.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cdiv class=\"product-notice product-notice--warning\"\u003e\n\u003cp\u003e\u003cstrong\u003e⚠ Order item\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDelivery time approximately \u003cstrong\u003e1–1½ weeks\u003c\/strong\u003e from order. Availability can be checked in the shopping cart.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eProduct type: Halogen spotlight lamp, MR11\u003c\/li\u003e\n\u003cli\u003eLamp type: MR11 (Multifaceted Reflector, 11\/8 inches = 35 mm)\u003c\/li\u003e\n\u003cli\u003eBase: GU4\u003c\/li\u003e\n\u003cli\u003ePower: 20 W\u003c\/li\u003e\n\u003cli\u003eBeam angle: 30°\u003c\/li\u003e\n\u003cli\u003eColour temperature: 2800 K (warm white)\u003c\/li\u003e\n\u003cli\u003eNominal voltage: 12 V\u003c\/li\u003e\n\u003cli\u003eDimensions: Ø 35 × 35 mm\u003c\/li\u003e\n\u003cli\u003eProduct code: HC301202030\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eCompatibility and installation\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003e\u003cstrong\u003eWhen to stick with halogen?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMR11 LED alternatives are available, but compatibility issues are common—especially with old halogen transformers and dimmers, LEDs can flicker or fail to light up. Halogen lamps always work with these components, making them a safe choice as a replacement when you don't want to modify an existing luminaire.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e12 V — transformer required\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMR11 always operates at 12 V voltage and never directly on 230 V mains voltage. Most MR11 luminaires already have a built-in transformer. If you are building your own lighting setup, check our selection in the \u003ca href=\"\/en\/collections\/muuntajat\"\u003etransformers\u003c\/a\u003e category.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGU4 base — two pins\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eGU4 is a two-pin base with a pin spacing of 4 mm. This is the standard base for MR11 lamps. Check the luminaire before purchasing to ensure GU4 is the correct base—larger spotlights often use GU5.3 (MR16 version) or GU10 (direct 230 V).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMR11 vs MR16\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMR11 (this, Ø 35 mm):\u003c\/strong\u003e smaller, suitable for compact luminaires (display cases, furniture lighting, small spotlights)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMR16 (Ø 50 mm):\u003c\/strong\u003e larger, more common, suitable for most recesses and spotlights\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCheck the luminaire dimensions before purchasing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBeam angle 30°\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e30° is a narrow spotlight beam angle that precisely concentrates light on a defined area. Especially suitable for accentuating artwork, objects, or work surfaces.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLifespan — typical for halogen\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe lifespan of a halogen lamp is typically 2000 hours—significantly shorter than an LED lamp (25,000+ h). Be prepared for replacements and consider an LED switch if the luminaire and transformer allow it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation checklist\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eTurn off the power at the main switch\u003c\/li\u003e\n\u003cli\u003eAllow the old lamp to cool completely\u003c\/li\u003e\n\u003cli\u003eDo not touch the bulb with bare hands—finger grease damages the glass\u003c\/li\u003e\n\u003cli\u003eUse a clean cloth or glove\u003c\/li\u003e\n\u003cli\u003eInstall the new lamp—two pins into the slots\u003c\/li\u003e\n\u003cli\u003eTurn on the power and test\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/details\u003e","brand":"Lumenled Oy","offers":[{"title":"20W","offer_id":56571111145816,"sku":"HC301202030","price":4.14,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0577\/2171\/6917\/files\/HC301202030.webp?v=1768989283","url":"https:\/\/lomenled.com\/en\/products\/12v-20w-mr11-30-gu4-2800k-35x35mm-halogeenikohdelamppu","provider":"Lumenled Oy","version":"1.0","type":"link"}