reserve capacity The amount of generating capacity a central power system must maintain to meet peak loads. ramp rate The ability of a generating unit to change its output over some unit of time, often measured in MW/min. junction box A photovoltaic (PV) generator junction box is an enclosure on the module where PV strings are electrically connected and where protection devices can be located, if necessary. electric current The flow of electrical energy (electricity) in a conductor, measured in amperes. Also, the positive terminal of a diode. Keep in mind to place your lights where they will receive the most sunshine, and if your solar lights are tiltable, make sure they are pointed in the direction of the sun. series regulator Type of battery charge regulator where the charging current is controlled by a switch connected in series with the photovoltaic module or array. battery Two or more electrochemical cells enclosed in a container and electrically interconnected in an appropriate series/parallel arrangement to provide the required operating voltage and current levels. scribing The cutting of a grid pattern of grooves in a semiconductor material, generally for the purpose of making interconnections. tilt angle The angle at which a photovoltaic array is set to face the sun relative to a horizontal position. diffuse radiation Radiation received from the sun after reflection and scattering by the atmosphere and ground. It's important that the sensor is part of the solar light. p-type semiconductor A semiconductor in which holes carry the current; produced by doping an intrinsic semiconductor with an electron acceptor impurity (e.g., boron in silicon). solar resource The amount of solar insolation a site receives, usually measured in kWh/m2/day, which is equivalent to the number of peak sun hours. volt (V) A unit of electrical force equal to that amount of electromotive force that will cause a steady current of one ampere to flow through a resistance of one ohm. state-of-charge (SOC) The available capacity remaining in the battery, expressed as a percentage of the rated capacity. energy levels The energy represented by an electron in the band model of a substance. The STANDS4 Network. 5.Quality Guaranteed: 12 Month Warranty for the solar sensor lights.the solar security lights outdoor certified by FCC, CE, ROSH, please contact us If there is any problem. photoelectrochemical cell A type of photovoltaic device in which the electricity induced in the cell is used immediately within the cell to produce a chemical, such as hydrogen, which can then be withdrawn for use. hybrid system A solar electric or photovoltaic system that includes other sources of electricity generation, such as wind or diesel generators. regulator Prevents overcharging of batteries by controlling charge cycle-usually adjustable to conform to specific battery needs. Shedding Light on Solar Lighting: Are they Bright Enough? - SolarTown