Q Can I put a compact fluorescent lamp into my existing light fitting?
A Yes. Compact fluorescent lights come with bayonet or edison screw bases, so they can be used instead of incandescent light globes in existing light fittings. Note that the higher wattage fluorescents are longer than globes, so you need to consider this too.
Q Can I use a compact fluorescent lamp with a dimming switch?
A In most instances this type of lamp is not suitable as dimming will cause lamp failure. If you use a dimmer most of the time, you could replace the lights with lower wattage ones and save more money and energy that way.
Q Do low voltage lights costs less to run?
A No. You pay for electricity by the wattage of the lamp not its voltage. It will therefore cost the same amount to run a 50W low voltage lamp as it does to run a 50W normal voltage lamp.
Q Is it more expensive to turn a fluorescent lamp off than leave it on ?
A It costs more to start a fluorescent lamp than it does to run it. However, this increased start-up current is only microseconds long and therefore the first second the lamp is off will more than pay for the start-up. Frequent switching on and off of a fluorescent light will reduce its lifetime and therefore should be avoided.
Q What lighting do I need for my house?
A In general, areas which require lighting for longer periods, such as kitchens and living rooms, are best lit with fluorescent lights. For areas such as bathrooms, toilets and other places where lighting is only used for short periods, your best option is a normal incandescent globe (although fluorescent lights can still be used).
Q Are heat lamps expensive to run?
A Heat lamps use radiant heat to warm a person directly underneath the lamp while he or she is in the bathroom. If used only when required it is an economical form of heating a bathroom. If used unnecessarily or for longer periods, however, it can become expensive to run. Try to avoid excess or unnecessary use.
Q Is lighting a major part of my home's energy consumption?
A Lighting typically accounts for around 6% of your total energy use and 16% of greenhouse gas emissions, so it's important to use the most efficient lighting you can.
Q What are halogen lights?
A Halogen globes are a form of incandescent light and are best used for special "spot" lighting purposes.
Q I leave my hallway light on for long periods – what lighting should I use?
A Fluorescent lighting is best suited to areas which are lit for long periods such as hallways, kitchens and family rooms or you can also purchase low-wattage low-light LED's that plug into a powerpoint.
Q Do dimmers save energy?
A Dimmer switches can save energy but beware, a light dimmed to one quarter of its input still uses half the energy. If you need to dim consistently, put in a lower wattage globe.