{"product_id":"mr11-halogeenikohdelamppu-gu4-10w-12v","title":"MR11 Halogen Spotlight GU4 10W 12V 2700K 30° – small spotlight, glass reflector","description":"\u003cp\u003eThe MR11 halogen spotlight is a small low-voltage lamp, especially suitable for small spotlights, chandeliers, display cases, and decorative lighting. Its diameter of only 35 mm and a 30° beam angle produce a soft spotlight, and the 2700K warm tone is suitable for ambient lighting in homes, restaurants, and exhibition lighting. The glass reflector provides bright and natural light distribution.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eRequires a 12V transformer. GU4 base — not to be confused with GU5.3 (MR16) base.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cdiv class=\"product-notice product-notice--warning\"\u003e\n  \u003cp\u003e\u003cstrong\u003e⚠ Order Product\u003c\/strong\u003e\u003c\/p\u003e\n  \u003cp\u003eThis product is an order product — delivery time is approximately \u003cstrong\u003e2 weeks\u003c\/strong\u003e from order. Please take this into account if you need the lamp quickly.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eLamp type: MR11 halogen spotlight (low voltage)\u003c\/li\u003e\n  \u003cli\u003eBase: GU4 (bi-pin, 4 mm pin spacing)\u003c\/li\u003e\n  \u003cli\u003eVoltage: 12 V (requires transformer)\u003c\/li\u003e\n  \u003cli\u003ePower: 10 W\u003c\/li\u003e\n  \u003cli\u003eColor temperature: 2700 K (warm white)\u003c\/li\u003e\n  \u003cli\u003eBeam angle: 30° (spotlight)\u003c\/li\u003e\n  \u003cli\u003eColor Rendering Index (CRI): Ra 100 (typical for halogen)\u003c\/li\u003e\n  \u003cli\u003eReflector type: Glass\u003c\/li\u003e\n  \u003cli\u003eLifetime: typically 2,000–4,000 hours\u003c\/li\u003e\n  \u003cli\u003eDimmable: Yes (with compatible dimmers)\u003c\/li\u003e\n  \u003cli\u003eDiameter: 35 mm\u003c\/li\u003e\n  \u003cli\u003eLength: 35 mm\u003c\/li\u003e\n  \u003cli\u003eProduct code: 5941019829181\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\n\u003cp\u003e\u003cstrong\u003eRequires a 12V transformer\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis is a 12V low-voltage lamp that requires a 12V transformer to operate. The transformer converts the household 230V mains voltage to 12V. Compatible transformers (both electronic and magnetic) can be found in our selection under the \u003ca href=\"\/en\/collections\/muuntajat\"\u003eElectrical Supplies → Transformers\u003c\/a\u003e category.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCheck transformer power\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe transformer's power must match the power of the lamp (or the total power of multiple lamps). For example, for a single 10W lamp, the transformer must be at least 10W. For multiple lamps, calculate the total power and choose a transformer accordingly — it's often advisable to allow for a small reserve (e.g., four 10W lamps = 40W, choose a 50–60W transformer).\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMR11 vs MR16 — an important distinction\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eMR-type low-voltage floodlights are available in several sizes:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMR11\u003c\/strong\u003e — diameter \u003cstrong\u003e35 mm\u003c\/strong\u003e, base \u003cstrong\u003eGU4\u003c\/strong\u003e (4 mm pins) — this product\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMR16\u003c\/strong\u003e — diameter 51 mm, base GU5.3 (5.3 mm pins) — larger alternative\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThese are not interchangeable — different base and different size. Check the luminaire's base and lamp size requirements before ordering.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eTypical applications\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eSmall spotlights and display case lights\u003c\/li\u003e\n  \u003cli\u003eChandeliers and decorative luminaires requiring a small spotlight\u003c\/li\u003e\n  \u003cli\u003eExhibition lighting and artwork illumination (in the background, not as the primary target due to prolonged exposure)\u003c\/li\u003e\n  \u003cli\u003eHotel and restaurant premises\u003c\/li\u003e\n  \u003cli\u003eOld decorative luminaires where MR11 size is standard\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eHalogen lamp — usage considerations\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eHalogen lamps get hot during operation — do not touch the glass surface when the lamp is on or has just been switched off. The typical lifespan is \u003cstrong\u003e2,000–4,000 hours\u003c\/strong\u003e, which is significantly shorter than LED alternatives (15,000–25,000 h). However, halogen retains its advantages with a \u003cstrong\u003eperfect CRI 100 color rendering\u003c\/strong\u003e, which is ideal for professional use (artworks, jewelry, colorful products).\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eInstallation checklist\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003col\u003e\n  \u003cli\u003eCheck that the luminaire has a GU4 base (not GU5.3)\u003c\/li\u003e\n  \u003cli\u003eCheck that a 12V transformer is used and that its power is sufficient for the total power of the lamps\u003c\/li\u003e\n  \u003cli\u003eCheck that the lamp's dimensions (Ø35 × 35 mm) fit the luminaire\u003c\/li\u003e\n  \u003cli\u003eTurn off the power before installation — do not touch the lamp's glass with your fingers (grease can shorten its lifespan)\u003c\/li\u003e\n  \u003cli\u003eInstall the lamp and turn on the power\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003cp\u003e\u003cstrong\u003eConsider an LED alternative\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf energy saving and longer lifespan are important, consider \u003ca href=\"\/en\/collections\/gu5-3-led-kohdelamput\"\u003eMR11 LED spotlights\u003c\/a\u003e, which use about 80% less energy and last up to 25,000 hours. However, halogen retains its advantages with a perfect CRI 100 color rendering, which is particularly important for illuminating artworks and jewelry.\u003c\/p\u003e\n\u003c\/details\u003e","brand":"Lumenled Oy","offers":[{"title":"10W \/ GU4","offer_id":56829013590360,"sku":"5941019829181","price":3.75,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0577\/2171\/6917\/files\/4e875505a31de2820fceeefff5980be35a60c434_png.webp?v=1772526106","url":"https:\/\/www.lumenled.fi\/en\/products\/mr11-halogeenikohdelamppu-gu4-10w-12v","provider":"Lumenled Oy","version":"1.0","type":"link"}