അതിനാൽ, എല്ലാം T ആണ് നിർണ്ണയിക്കുന്നത്, തൽഫലമായി, T യുടെ അടിസ്ഥാനത്തിൽ റേഡിയേഷന്റെ തീവ്രത നൽകുന്ന സ്റ്റെഫാൻ ബോൾട്ട് സ്മാൻ നിയമം എന്ന് വിളിക്കപ്പെടുന്ന ഒന്ന് ഉണ്ട്, അത് പറയുന്നു പുറത്തുവരുന്ന വികിരണത്തിന്റെ തീവ്രത σ T4 ന് തുല്യമാണ്, ഇവിടെ സിഗ്മയെ സ്റ്റെഫാൻ ബോൾട്ട് സ്മാൻ സ്ഥിരാങ്കം എന്ന് വിളിക്കുന്നു, കാരണം മൂല്യം 5.67 × 10−8 W / m2 K4 ആണ്.
కాబట్టి, ప్రతిదీ T చేత నిర్ణయించబడుతుంది మరియు తత్ఫలితంగా స్టీఫన్ బోల్ట్జ్మాన్ లా అని పిలువబడే ఈ నియమం T పరంగా రేడియేషన్ యొక్క తీవ్రతను ఇస్తుంది. ఇక్కడ చెబుతున్నది ఏమిటంటే బయటికి వస్తున్న రేడియేషన్ యొక్క తీవ్రత కు సమానం , ఇక్కడ సిగ్మాను స్టీఫన్ బోల్ట్జ్మాన్ స్థిరాంకం అని అంటారు, దీని విలువ .