{"product_id":"osram-decostar-51s-gu5-3-35w-12v","title":"Osram Decostar 51S GU5.3 35W 12V 2900K 36° – dichroic reflector, dimmable","description":"\u003cp\u003eThe Osram Decostar 51S is a premium-level MR16 halogen spotlight with a dichroic reflector that reduces heat in the light beam by up to 66%. Warm white 2900K light, perfect color rendering (CRI Ra 100), and a 36° beam angle — the ideal choice for accent lighting, illuminating display cases, and spotlighting artwork. The UV filter protects colors from fading.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRequires a 12V transformer. GU5.3 base. Dimmable.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"product-notice product-notice--warning\"\u003e\n\n\u003cp\u003e\u003cstrong\u003e⚠ Made-to-order product\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis product is made-to-order — delivery time is approximately \u003cstrong\u003e1–1½ weeks\u003c\/strong\u003e from the order date. Please take this into account if you need the lamp quickly. \u003cstrong\u003eNOTE: minimum order quantity 5 pcs.\u003c\/strong\u003e\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003cul\u003e\n\n\u003cli\u003eLamp type: MR16 halogen spotlight, dichroic reflector\u003c\/li\u003e\n\n\u003cli\u003eSeries: Osram Decostar 51S\u003c\/li\u003e\n\n\u003cli\u003eBase: GU5.3 (two-pin, low voltage)\u003c\/li\u003e\n\n\u003cli\u003eVoltage: 12 V (requires transformer)\u003c\/li\u003e\n\n\u003cli\u003ePower: 35 W\u003c\/li\u003e\n\n\u003cli\u003eBeam angle: 36° (spotlight)\u003c\/li\u003e\n\n\u003cli\u003eColor temperature: 2900 K (warm white, incandescent-like tone)\u003c\/li\u003e\n\n\u003cli\u003eColor Rendering Index (CRI): Ra 100 (perfect)\u003c\/li\u003e\n\n\u003cli\u003eLifespan: 4,000 hours\u003c\/li\u003e\n\n\u003cli\u003eDimmable: Yes, 100%\u003c\/li\u003e\n\n\u003cli\u003eSpecial features: Dichroic reflector (−66% heat in the beam), UV filter\u003c\/li\u003e\n\n\u003cli\u003eApproved for open fixtures (IEC 60598-1)\u003c\/li\u003e\n\n\u003cli\u003eLamp construction: Decorative protective glass, contains no mercury\u003c\/li\u003e\n\n\u003cli\u003eDiameter: 51 mm\u003c\/li\u003e\n\n\u003cli\u003eLength: 46 mm\u003c\/li\u003e\n\n\u003cli\u003eProduct code: HC501203536\/02\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch6\u003e\u003cstrong\u003eNOTE: MINIMUM ORDER QUANTITY 5 PCS\u003c\/strong\u003e\u003c\/h6\u003e\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eCompatibility and installation\u003c\/strong\u003e\u003c\/summary\u003e\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. You can find compatible transformers (both electronic and magnetic) in our selection under the \u003ca href=\"https:\/\/lmenled.com\/collections\/muuntajat\"\u003eElectrical accessories → Transformers\u003c\/a\u003e category.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCheck the transformer wattage\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe transformer's power must match the lamp (or the total power of multiple lamps). E.g., for one 35W lamp, the transformer must be at least 35W. For multiple lamps, add up the total power and choose a transformer accordingly — it is often advisable to leave a small margin (e.g., two 35W lamps = 70W, choose an 80–105W transformer).\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGU5.3 base — two-pin attachment\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eGU5.3 is a base with two pins (Ø 5.3 mm) that is pushed directly into the fixture socket. Not to be confused with the GU10 base, which is a bayonet-style mount that operates on 230V mains voltage.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDichroic reflector — cooler beam\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe Decostar 51S's dichroic reflector reflects visible light forward while allowing infrared heat to pass through the back of the reflector. This means that \u003cstrong\u003ethe surface being illuminated feels up to 66% less heat\u003c\/strong\u003e compared to a standard halogen lamp. Especially useful in display cases, museums, art lighting, and food displays where heat can damage the object.\u003c\/p\u003e\n\n\u003cp\u003eNote: the back of the lamp still gets hot — ensure that the fixture is designed to dissipate heat from the rear.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eUV filter — protects colors\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe UV filter blocks UV radiation that would otherwise fade colors in artwork, textiles, and products. This makes the Decostar 51S an ideal choice for museums, galleries, clothing stores, and display cases.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe lamp is dimmable\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis Decostar 51S is 100% dimmable with compatible dimmers. Halogen lamp dimming works with both electronic and triac dimmers. Check that your transformer is dimmable if you wish to adjust the light output.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eInstallation checklist\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003col\u003e\n\n\u003cli\u003eCheck that the fixture has a GU5.3 base (not GU10)\u003c\/li\u003e\n\n\u003cli\u003eCheck that you are using a 12V transformer with enough power for the total wattage of the lamps\u003c\/li\u003e\n\n\u003cli\u003eCheck that the lamp dimensions (Ø51 × 46 mm) fit the fixture\u003c\/li\u003e\n\n\u003cli\u003eTurn off the power before installation — do not touch the lamp glass with your fingers (oils can shorten the lifespan)\u003c\/li\u003e\n\n\u003cli\u003eInstall the lamp and switch on the power\u003c\/li\u003e\n\n\n\u003c\/ol\u003e\n\n\u003cp\u003e\u003cstrong\u003eConsider an LED option\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf energy savings and longer lifespan are important, consider \u003ca href=\"https:\/\/lmenled.com\/collections\/gu5-3-led-kohdelamput\"\u003eGU5.3 LED spotlights\u003c\/a\u003e, which use approximately 80% less energy and last up to 25,000 hours. However, halogen retains its advantage with perfect CRI 100 color rendering, which is important for things like lighting artwork and jewelry.\u003c\/p\u003e\n\n\u003c\/details\u003e","brand":"Osram","offers":[{"title":"35W \/ GU5.3","offer_id":57104955081048,"sku":"HC501203536\/02","price":8.15,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0577\/2171\/6917\/files\/HC501202036-02.webp?v=1776160771","url":"https:\/\/lmenled.com\/en\/products\/osram-decostar-51s-gu5-3-35w-12v","provider":"Lumenled Oy","version":"1.0","type":"link"}