Quite Good. Energy Efficient. I have replaced all the bulbs in our house :-)
* This Philips Energy Saving Bulb is ideal for low-energy lighting.
* Features: Energy saving.
* Wattage: 11W.outputs the equivalent of a 60W incandescent bulb
* Voltage: 240V.
* Type of fitting: Bayonet cap.
* Life expectancy: 10 years.
* Quantity in pack: Sold singularly.
* EST approved: Yes.
This bulb cannot be used with a dimmer switch.