tobias grau is exhibiting his led lamps at cologne's interior design fair, imm. intensity of the light is easy to alter by hand. light-emitting diodes are an important trend with other exhibitors in the trade fair. led's are often integrated directly into the furnishings as with these pieces of lounge furniture. or here in the bathroom. a real plus point are the various light moods and colors that led's make possible and that can be altered or dimmed at the touch of a button. the same principle holds with the led lamps made by the fill yips electronics company. here, too, color and brightness are adjustable. >> it is a very clear trend for living rooms to create atmosphere with the aid of colored light. light has different effects depending on the hugh. it can be stimulating or relaxing, and you can change the mood by changing the color of the light. >> traditional furniture manufacturers have also discovered led light. sidgel-color led's are used especially in closets. the low level of heat production makes them suitable for the undersides of shelves. these days