How to Choose Energy Efficiency Lights?

Energy Efficiency Lights

Energy efficiency in lighting fixtures is an eco-friendly, energy bills-saving option fast catching the fancy of the urban populace. As the use of traditional, inefficient light bulbs decreases, numerous and varied efficient light bulb options are springing up every day.

Choosing a light bulb

With various kinds of light bulbs available today, it is essential for the consumers to understand their energy savings and also which light fixtures and uses the light bulbs are perfect for. Compact fluorescent lamps, more popularly known as CFLs, last up to 6 times longer than and are up to 80% more efficient than standard incandescent light bulbs, and are usually for general lighting. Nowadays, dimmable CFLs are also becoming extremely popular. Light-emitting diodes or LEDs last up to 15 times longer than standard bulbs and are perfect for areas and objects that need focused, bright lighting such as kitchen areas and staircase footlights. Halogen lamps/globes and infrared-coated halogen spotlights are 30% more efficient than usual light bulbs and are usually used for areas such as pantries, lofts and ducts where lights are switched on and off instantly. Linear fluorescent tubes are up to 80% efficient and are best for accent and feature lighting such as cupboard and cabinet lighting.

Bulb brightness and colour

Light bulbs ensuring energy efficiency come in a wide range of colour temperatures measured by Kelvin (K); the higher the K factor, the cooler is the light. If one wishes to have “warm” lighting, then yellow lights will work better, and if one wishes to have the light more on the cooler side, then white lighting will work the best. Yellow lights work better as accent lighting for artwork and fancy lamps whereas white works better for bathrooms and laundry rooms. “Warm white” is the same as standard bulbs and is perfect for bedrooms, hallways and lounges.

The “lumens” on the packaging indicates the bulb brightness, which essentially measures the light output of the bulb; the higher the lumens, the brighter the light. Similarly, the wattage of the bulb measures the energy input of the bulb, and the higher the wattage, the more the bulb costs to run. Lumens/watt indicates the light efficiency, which is how efficiently the bulb converts electricity into light. The higher the number, the more efficient the bulb is, and this will be helpful in zeroing down which bulb gives maximum output while using the least energy.

Other special features and aspects

• Life – Other important features which will help people choose an energy-efficient light bulb is the life of the bulb, that is, the number of hours a bulb should last when in use.


• Mercury – The amount of “mercury” that a bulb contains also helps; LEDs have no mercury and CFLs have about 5 mg.


• Dimmable options – Dimmer switches are becoming popular alternatives to save on electricity. This aspect on the packaging shows if the bulb can be used with a dimmer switch or other electronic switches.

Lighting fixtures with energy efficiency greatly reduce the carbon footprint, apart from reducing the energy use and saving on energy bills.

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