{"product_id":"12v-20w-decostar-51s-mr16-36-gu5-3-2900k-46x51mm-halogeenilamppu-osram","title":"Osram Decostar 51S MR16 halogen lamp 12V 20W 36° GU5.3 2900K – 46x51mm","description":"\u003cp\u003eThe Osram Decostar 51S is a classic MR16 halogen lamp that replaces broken MR16 halogens in light fixtures. 12 V halogen technology, 20 W power, and a 36° spotlight beam angle — suitable for older MR16 fixtures where an LED alternative does not work (e.g., due to compatibility issues with a transformer or dimmer). The 2900 K color temperature produces a warm and natural halogen tone. UV protection shields the illuminated object from harmful radiation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e12 V halogen — requires a 12V transformer. GU5.3 base (MR16). UV-protected. The service life of 4000 h is typical for a halogen.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"product-notice product-notice--warning\"\u003e\n\n\u003cp\u003e\u003cstrong\u003e⚠ Order item\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eDelivery time approximately \u003cstrong\u003e2 weeks\u003c\/strong\u003e from the order. Availability can be checked in the shopping cart.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003cul\u003e\n\n\u003cli\u003eProduct type: halogen lamp, MR16\u003c\/li\u003e\n\n\u003cli\u003eBrand: Osram\u003c\/li\u003e\n\n\u003cli\u003eSeries: Decostar 51S\u003c\/li\u003e\n\n\u003cli\u003eLamp type: MR16 (Multifaceted Reflector, 16\/8 inches = 51 mm)\u003c\/li\u003e\n\n\u003cli\u003eBase: GU5.3\u003c\/li\u003e\n\n\u003cli\u003ePower: 20 W\u003c\/li\u003e\n\n\u003cli\u003eBeam angle: 36°\u003c\/li\u003e\n\n\u003cli\u003eColor temperature: 2900 K (warm white)\u003c\/li\u003e\n\n\u003cli\u003eColor: colorless (clear light)\u003c\/li\u003e\n\n\u003cli\u003eNominal voltage: 12 V\u003c\/li\u003e\n\n\u003cli\u003eUV protection: \u003cstrong\u003eyes\u003c\/strong\u003e\n\n\u003c\/li\u003e\n\n\u003cli\u003eLow-pressure technology: yes\u003c\/li\u003e\n\n\u003cli\u003eInfrared coating: no\u003c\/li\u003e\n\n\u003cli\u003eDimensions: Ø 51 × 46 mm\u003c\/li\u003e\n\n\u003cli\u003eService life: 4000 hours\u003c\/li\u003e\n\n\u003cli\u003eProduct code (EAN): 4050300272634\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eCompatibility and installation\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003e\u003cstrong\u003eUV protection — an important feature\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe Decostar 51S includes a UV-protected bulb that prevents harmful ultraviolet radiation from reaching the illuminated object. This is especially important for:\u003c\/p\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eLighting artwork:\u003c\/strong\u003e UV radiation fades paints and fabrics\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eRetail lighting:\u003c\/strong\u003e UV radiation can damage textiles and other products\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eFood lighting:\u003c\/strong\u003e in pickup points and displays, UV can degrade food quality\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003cp\u003eUV protection is one of the most important differences between halogen and LED alternatives — LED lamps generally do not produce significant UV radiation, but a high-quality halogen needs specific UV protection, and the Decostar 51S includes it as standard.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy stick with halogen?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eMR16 LED alternatives are available, but compatibility issues are common — especially with older halogen transformers and dimmers, where LEDs may flicker or fail to turn on. A halogen lamp will always work with these components, making it a safe choice for replacement.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e12 V — transformer required\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eMR16 always operates on 12 V voltage. Most MR16 fixtures already have a built-in transformer. Check that the transformer power is at least 20 W — a smaller transformer will not be able to provide enough current for the lamp.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGU5.3 vs GU10\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe MR16 lamp base is GU5.3 (two-pin, 5.3 mm distance). It is easily confused with GU10, which is a direct 230 V base. \u003cstrong\u003eCheck the fixture carefully\u003c\/strong\u003e — GU5.3 only works in a 12 V system, GU10 only in a 230 V system.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eService life — 4000 h\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe 4000 h service life of the Decostar 51S is a good-quality halogen lifespan (common range is 2000–4000 h). This is significantly less than LED (25,000+ h). Be prepared for replacements or consider an LED upgrade of the entire system if changing the lamp is difficult.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eInstallation checklist\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003col\u003e\n\n\u003cli\u003eTurn off the power at the main switch\u003c\/li\u003e\n\n\u003cli\u003eLet the old lamp cool down completely\u003c\/li\u003e\n\n\u003cli\u003eDo not touch the bulb with bare hands — finger oils damage the glass\u003c\/li\u003e\n\n\u003cli\u003eUse a clean cloth or glove\u003c\/li\u003e\n\n\u003cli\u003eInstall the new lamp — fit the two pins into the slots\u003c\/li\u003e\n\n\u003cli\u003eTurn on the power and test\u003c\/li\u003e\n\n\n\u003c\/ol\u003e\n\n\u003c\/details\u003e","brand":"Osram","offers":[{"title":"20W","offer_id":57442375467352,"sku":"4050300272634","price":8.7,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0577\/2171\/6917\/files\/12v_50mm_gu5_3_74ab.jpg?v=1755788917","url":"https:\/\/lomenled.com\/en\/products\/12v-20w-decostar-51s-mr16-36-gu5-3-2900k-46x51mm-halogeenilamppu-osram","provider":"Lumenled Oy","version":"1.0","type":"link"}