Solar Lanterns is basically a portable device suitable for either indoor or outdoor lighting, covering a full range of 360 degree. These Solar Lanterns are designed to replace hurricane lanterns for use in remote places where conventional electricity is not available. Such Solar Lanterns not only provide illumination at night, but are also instrumental in avoiding the emission of greenhouse gases normally emitted from burning the wick and kerosene in the latter. Light is produced in a Solar Lanterns by igniting either a Compact Fluorescent Lamp (CFL) or a Light Emitting Diode (LED) while the energy to do so is generated by a string of solar cells, called a solar panel, exposed to sunlight. This energy, generated during sunlight hours, is stored in a battery to be used at night. LEDs are the latest development as a source of light. Therefore, the cost and performance of two solar lanterns, one based on a CFL and the other based on an LED, have been studied and compared to determine the better device for low-level lighting in the future. The comparison is based on lumens/watt (lm/W) output of the device. It has been found that the LED-based system and the CFL-based system cost almost the same if they are used to replace the hurricane lantern which has a light output of 40 to 50 lm. The life of the Solar Lanterns is more, typically 10,000 to 50,000 hours with luminous efficacy of 47 lm/W. Our collection of Solar Lanterns consists of Solar CFL Lantern and Solar LED Lantern.

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