Effective use of Solar Reading Lamp in modern era.
The objective of making Reading Lamp is to produce a self contained reading lamp that could be used by students in developing countries for reading at night. The circuit can be used for a wide variety of lighting applications.
The reading lamp consists of a small solar panel, a standard UPS style lead acid battery, and an LED circuit board. The circuit board contains a low power solar charge controller (regulator), a set of 8 white LEDs, a switch, an LED current regulator, and a low voltage disconnect circuit. The circuitry will insure a long battery life by preventing over charging and excessive discharging. The circuit was designed to work with lead acid batteries, it should also work with a string of 10 NiCd cells. Both the charge controller and LED regulator circuits can be used independently for other applications.
Solar Reading Lamp works when the electricity doesn't. Keeps you out of the dark when the power fails. Solar reading lamp folds for transit to the beach, park, or your backyard. Seven bright LED lights; runs for about five hours per charge. Charges in direct sunlight (allow 5 to 6 hours for a full charge) or via mini USB port that connects to your computer (full charge in about 3 hours via the USB port).
The reading lamp consists of a small solar panel, a standard UPS style lead acid battery, and an LED circuit board. The circuit board contains a low power solar charge controller (regulator), a set of 8 white LEDs, a switch, an LED current regulator, and a low voltage disconnect circuit. The circuitry will insure a long battery life by preventing over charging and excessive discharging. The circuit was designed to work with lead acid batteries, it should also work with a string of 10 NiCd cells. Both the charge controller and LED regulator circuits can be used independently for other applications.
Solar Reading Lamp works when the electricity doesn't. Keeps you out of the dark when the power fails. Solar reading lamp folds for transit to the beach, park, or your backyard. Seven bright LED lights; runs for about five hours per charge. Charges in direct sunlight (allow 5 to 6 hours for a full charge) or via mini USB port that connects to your computer (full charge in about 3 hours via the USB port).
|
|
