XLEDIA D75N-Diamond Series (A19,75W Equivalent,1050 lm,Cool White,Omni+Enclosed+Insulation Contact Suitable) XLEDIA bulbs can be used in enclosed fixtures and still retain its long life and performance. These are the first commercially available products in North America. XLEDIA LED light bulbs uses TTR technology (Tunneling Thermal Resistance) to effectively dissipate heat from both the emitters and the power drive. Estimated Yearly Energy Cost $1.39(Based on 3 hrs/day, 11/kWh,cost depends on rates and usage) 3 years warranty, for more detail please check official website:www.xledia.com