a transition period up to September 2012, and class B after September 2016. Calculation Incandescent and fluorescent lamps with and without an integrated ballast can be divided into energy efficiency classes. The division of lamps into such classes was made in EU Directive 98/11/EC on 27 January 1998, and includes lamps that are not marketed for use in the home. Light sources with an output of more than 6,500 lm and those that are not operated on line voltage are excluded. The energy efficiency class is determined as follows (Φ is the luminous flux in lm and P is the power consumption of the lamp in W): Lamps are classified into class A if: Fluorescent lamps without integrated ballast, are classified into class A if: The classification in the energy efficiency class B-G is based on the percentage (Energy Efficiency Index) at the reference power about the power consumption of a standard light bulb with the same luminous flux. Television In 2010, an energy label for televisions was introduced. The energy class is based on the Energy Efficiency Index (EEI), which is the power consumption relative to a reference power consumption. The reference power consumption of a normal television with screen area A is Where = 20 W for a television set with one tuner/receiver and no hard disc. Since the switch to digital terrestrial transmissions all new televisions sold in Europe have both analogue and digital tuners so the reference power was increased to 24 Watts as set out in the directive the formula is as follows for television sets with two or more tuners/receivers. Adding of a hard drive(s), then the formula is as follows for television sets with hard disc(s) and two or more tuners/receivers. For example, a television with a diagonal of 82 cm (32 in) has a screen area A = 28.7 dm2 and a reference power consumption of 144 W. The energy classes are as in the table below. The annual on-mode energy consumption E in kWh is calculated as E = 1460 [h/a] × P [W] / 1000, or simplified E = 1,460 × P. In televisions with automatic brightness control, the on-mode power consumption is reduced by 5% if the following conditions are fulfilled when the television is placed on the market: (a) the luminance of the television in the home-mode or the on-mode condition as set by the supplier, is automatically