You are definitely trying to conserve money, but you can conserve more in the end if you replace them. You can anticipate that your bills will go down because the new models do not up plenty of energy.
The best approach to preserve electricity is to close the lights when you're not using them. Make an effort to all-natural light during day time as well. Open your curtains and allow all-natural light inside your residence so you will not have to open your lights during daytime.