Yes, LED Filament bulbs are dimmable. However, not all LED Filaments are dimmable. It is important to check a product’s dimmer capability using the product information or contacting the product’s manufacturer. Before purchasing, ensure the filament bulb is dimmable to save the trouble of using a dimmer switch on a bulb that is not dimmable.
No, LED filament bulbs do not run hot during operation. LED technology uses internal heatsinks to improve heat dispersion during operation. This also means the bulb does not waste as much energy when in use.
However, in rare cases, an LED filament can become hot. This likely means that the bulb was defective or improperly installed. It can also mean a non-enclosure rated bulb was installed in an enclosed fixture. Check your bulb’s packaging for enclosure and use information before use.