LED filaments light bulbs are made in standard sizes so can be retrofitted into your current light fittings.
Before you choose your bulb you need to know the following:
LED filament bulbs are often used for decorative effect. That means they can be designed to be less bright so you can stand to look at them without hurting your eyes. The best indicator of brightness is lumen output, not wattage.
The vintage feel of the bulbs is achieved through the colour temperature. The colour temperature of LED filament bulbs sits within a much warmer range than everyday light bulbs.