US Patent 7273294 Outdoor solar energy lamp with luminescence efficiency

An outdoor solar energy lamp has at least one lighting unit and a solar energy battery unit electrically connected to the at least one lighting unit. Each lighting unit has a base, at least one light emitting diode (LED) on the base and a transparent cover mounted on the base and partially coated with luminescent material. By using the solar energy battery unit and the LED, the lamp is economical and efficient in use. Moreover, the luminescent material keeps the lamp on lighting after the solar energy battery unit is exhausted.