Glow Younger TriLight LED DeviceThis little handheld is twice the size of normal handheld [2 3 4" wide x 5" long x 1 2" deep] and yet still very light weight. It's easy to travel with. It contains 120 bulbs (Amber Yellow 590nm, Red 660nm, Infrared 850nm). This is a device that Christine has been using for years. She knows first hand it's well made and durable. It's a device she's willing to put her name on. Red Yellow Infrared can be used alone or in combination with the handy