Electronic Ballast: Ballast that uses semi-conductor components to increase the frequency of fluorescent lamp operation - typically in the 20-40 kHz range. Smaller inductive components are used to provide the lamp current control. Fluorescent system efficiency is increased to high frequency lamp operation. Ohms Models:

L.E.D Lighting A solid-state device (diode) that emits light of a single primary color, but in combination with other diodes can produce colors of any hue for use in signage. These devices, each of which is about one centimeter (half-inch), have a remarkably long life. Also called an LED. Advantages of LED Lights The operational life of current white LED lamps is 100,000 hours. This is 11 years of continuous operation, or 22 years of 50% operation. The long operational life of an led lamp is a stark contrast to the average life of an incandescent bulb, which is approximately 5000 hours.

OHMS SOLAR LIGHT SPECIFICATION DEFINITION A stand alone so photovoltaic street lighting system comprises a compact fluorescent lamp, lead acid battery, PV module(s) control electronics, inter-connecting wires / cables, Module mounting hardware, Battery box, Operation, instruction and maintenance manual. DUTY CYCLE The system should be designed to automatically switch ON at dusk. operate through out the night and automatically switch OFF at the dawn. under average daily insolation of 5 kwh/sq.m. on a horizontal surface LAMP The lamp will be of compact fluorescent (CFL) type, e