The watt (symbol: W) is a derived unit of power in the International System of Units (SI), named after the Scottish engineer
James Watt (1736–1819). The unit, defined as one joule per second, measures the rate of energy conversion or transfer.
Photography accessory to provide wind effect for clothing and hair
White balance (WB) is the process of removing unrealistic color casts, so that objects which appear white in person are
rendered white in your photo. Proper camera white balance has to take into account the "color temperature" of a light source,
which refers to the relative warmth or coolness of white light.
Light modifier of white color. Used in portrait and product photographies to soften the light.