This is one of the many works I did for Shaastra during my Design-Graphic Artist Co-ordinatorship* ( I wonder if there is such a word ) , that were not accepted by the Godly Core team. Basically, it says conserve energy. A brief write-up on what it all means :
One fine night, when the light in your room is glowing at its complete brightness, you are busy chatting with your girlfriend (or boyfriend) in Gtalk, comfortably resting in your bed. Suddenly, your mom calls for some work and you have to go out of the room. Then question yourself ... WILL U CARE TO SWITCH OFF THE LIGHT IN YOUR ROOM ??!! In most of the cases - the answer is no.Even though you care to do so, you`ll not turn off thinking is that it's more economical to just leave a light on rather than pay the costs of flicking it back on. It is a common perception that switching the lights on and off use more energy than leaving them on which is proved wrong by scientists ! In reality, that "surge" lasts for only a fraction of second, according to Francis Rubinstein, a staff scientist at Lawrence Berkeley National Laboratory. Any "start-up" energy costs are minuscule at best and are more than offset by the money you save from turning your lights off, even if it's only for a short time.
So if you're strictly concerned about saving energy (and money), you should turn your lights out when you're not using them.
Other ways to save energy -
Whenever possible, use natural daylight. Turning lights off or dimming them during the day allows for lower energy costs and a more comfortable environment.
Replace incandescent bulbs with compact fluorescent lamps (CFLs)
This type of bulbs can last up to ten times longer and provide the same amount of light as standard incandescent bulbs.
Use timers and sensors.
The installation of sensors, timers, or photocells will ensure that lights are turned off at the appropriate time. These can be used even in streetlights. These are inexpensive & can reduce lighting costs by up to 40 percent by turning off lights in unoccupied areas.
Turn off the lights when not in use.
It doesn't get any more simpler than this.