Can energy saving light bulb be operated with direct voltage?
Usually, 5W to 11W E27 and 5W to 7W E14 can be operated on a direct voltage between 176V to 340V besides the usual alternating power usage. This means, for instance, energy saving light bulb may be operated with battery supplied 220/230V facilities in internal areas. At the lower limit of 176V the lamps will light perfectly in a environment with a temperature of 5C to 50C. They are not sensitive to over-voltages of the direct current grid up to 340V. energy saving light bulb attains its relevant nominal data with direct voltage operation of 310V. The following typical deviations occur with other direct voltage values.
