{"product_id":"stefan-boltzmann-lamp","title":"Stefan Boltzmann lamp","description":"\u003ch5\u003e\u003cspan\u003eDescription\u003c\/span\u003e\u003c\/h5\u003eHigh temperature source designed to produce thermal radiation, for investigating how such radiation depends on the temperature and to confirm the Stefan-Boltzmann law. The tungsten filament represents a good approximation of a point source of heat radiation and is thus highly suitable for investigating the inverse square law.\u003cbr\u003e\nThe temperature of the lamp can be determined from the resistance of the filament.\u003cbr\u003e\nTo minimize voltage loss the lamp contacts are soldered to the connectors.\u003cbr\u003e\nRefer also to experiments \u003ca href=\"https:\/\/www.3bscientific.co.uk\/PhysicsExperiments\/UE4050100_EN.pdf\" target=\"_blank\"\u003eUE4050100\u003c\/a\u003e and \u003ca href=\"https:\/\/www.3bscientific.co.uk\/PhysicsExperiments\/UE4050200_EN.pdf\" target=\"_blank\"\u003eUE4050200\u003c\/a\u003e.\u003cbr\u003eNominal voltage:                                        12 V DC\u003cbr\u003e\nNominal current:                                         1.75 A\u003cbr\u003e\nNominal power:                                          21 W\u003cbr\u003e\nMax. operating parameters:                     13 V DC\/2 A\u003cbr\u003e\nMaximum temperature of filament:           3600 K\u003cbr\u003e\n \u003cbr\u003e\n\u003cstrong\u003eContents\u003c\/strong\u003e:\u003cbr\u003e\n1 Stand rod, 130 mm long\u003cbr\u003e\n1 Stefan-Boltzmann lamp\u003cbr\u003e\n \u003cbr\u003e   \u003cli\u003e\n\t\tSecure online payment with SSL\u003c\/li\u003e\n\t\u003cli\u003e\n\t\tExpert advice\u003c\/li\u003e\n\t\u003cli\u003e\n\t\tFinancing available\u003c\/li\u003e\n\t\u003cli\u003e\n\t\tEasy returns \u0026amp; exchanges\u003c\/li\u003e\n\t\u003cli\u003e\n\t\tInternational shipping available\u003c\/li\u003e\u003ch5\u003e\u003cspan\u003eSpecifications\u003c\/span\u003e\u003c\/h5\u003e\u003cul\u003e\n\u003cli\u003eUPC: Not Specified\u003c\/li\u003e\n\u003cli\u003eGTIN\/ITF Barcode: Not Specified\u003c\/li\u003e\n\u003cli\u003eUnits of Measure: Not Specified\u003c\/li\u003e\n\u003cli\u003eOverall Product Length: Not Specified in\u003c\/li\u003e\n\u003cli\u003eOverall Product Width: Not Specified in\u003c\/li\u003e\n\u003cli\u003eOverall Product Height: Not Specified in\u003c\/li\u003e\n\u003cli\u003eWeight Capacity: Not Specified lbs\u003c\/li\u003e\n\u003cli\u003eActual Product Weight: 0.4\u003c\/li\u003e\n\u003cli\u003eProduct Assembly: Not Specified\u003c\/li\u003e\n\u003cli\u003eProduct Installation: Not Specified\u003c\/li\u003e\n\u003cli\u003eCountry of Origin: Not Specified\u003c\/li\u003e\n\u003cli\u003eCase QTY: Not Specified\/case\u003c\/li\u003e\n\u003cli\u003eCase Weight: Not Specified\u003c\/li\u003e\n\u003cli\u003eShips Via Freight: Not Specified\u003c\/li\u003e\n\u003cli\u003eProposition 65 Warning: Not Specified\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"3B Scientific","offers":[{"title":"Default Title","offer_id":48198729466048,"sku":"1008523","price":201.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1403\/8729\/files\/1776969333916.jpg?v=1776969336","url":"https:\/\/tensnet.com\/products\/stefan-boltzmann-lamp","provider":"TENSnet","version":"1.0","type":"link"}