Following are the main specifications of 2w led bulbs :- Product type: LED electricity-saving lamp Input voltage :100v-240v Power:2 w Luminous flux:170lm Lifespan:50000 h Lamp holder: e27 Model:jn-a1-11601 Product size:55*98mm Color: white Correlated color temperature:2400k-9000k Working temperature: -30 to +50¡ãc Material: die casting alloy. Application: 1.Cabinet lighting 2.Medical lighting 3.City beautification 4.Architectural lighting 5.Entertainment lighting 6.Other light sources.