You can buy the best quality oil lamps both online and offline. Although, wax lamps are easy to find offline yet getting the authentic Indian earthen lamps from the right sources can be a tough call. For instance - mustard oil is an important choice to light the lamp especially if you are using authentic earthen lamps bought from the online store.
Using mustard oil to light up the area is a good idea as the same is pocket friendly and removes doshas related to Saturn. Finding the right oil lamp to decorate the home is an important aspect of your needs.