28Watt 4Pin 2D Light Bulb

The 2D lamp is an energy saving lamp that will save you up to 80% off your electricity bill in replacement off a standard lamp. The 2D lamp is a very popular lamp that is often found in communal lighting areas such as corridors, hallways, stair wells and in many flush ceiling or wall lights. 2D lamps are a very compact alternative to linear fluorescent fittings providing superior all round light distribution and offering a life expectancy of 10,000- 15,000 hours. Its colour 835 means the lamp has a colour temperature of 3500 Kelvin; this is a measurement on the colour spectrum. At sunrise or sunset the sun gives off a red warm glow, this is a lower colour temperature or lower value Kelvin (2700 Kelvin or below is Warm White). At noon the sun gives off a brighter whiter light which is typically daylight, it has a higher colour temperature or higher value Kelvin (5000 Kelvin or above is Daylight). At home a warmer light is desired to provide a comforting, cosy environment; visually daylight is a much whiter brighter light, used to work in the kitchen or the office. Primarily the whiter light is better for a working environment.

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