Idealux - a multi-brand lighting supplier.

Solution

 I made an icon, combining the first letter of the name and the image of a light bulb in one graphic element. This shifted the emphasis from the light bulb, because, on its own, this symbol is already quite "hackneyed". And this way it looks fresh, not obvious and has more meaning. The icon can be used separately, for example for a favicon site or avatars social networks. The logo itself is universal, looks good in color and monochrome.