LED CFL bulbs are even more energy-efficient than conventional PL, Dulux and Lynx 'energy-saving' bulbs. Not only do they use up to 60% less energy, they last a lot longer too! LED CFL bulbs are designed as direct replacements for older energy-saving bulbs. Make sure to check whether your current bulb has 2 pins or 4 pins when choosing your new LED CFL bulb though. Also, check things like the number of lumens and the colour code if you want your new bulb to have similar specifications to your old one.