Save hundreds with this b22 bulb this b22 5w led bulb uses up to 90 less energy than 30 40w halogen equivalents while still producing the same level of brightness up to 420 lumens so from just switching over one bulb youll save up to 120 across its lifetime switching your whole home to led will lead to thousands being saved long lasting based on average use the lumilife 5 watt b22 will last you up to 15 years 25 000 hours thats 20 times longer than traditional light source savi