Description: This product is suitable for ovens and microwave. The main types of knobs are: two-color knob light, color-changing knob light, LED light strip, monochromatic knob light, temperature display knob, gradient color knob light. The main installation dimensions are: 38mm, 60mm,70mm, 76mm,77mm, 82mm. Features: 1. Special customized smart multi-function knob (you can customize the desired luminous color, and the materials can be selected independently) 2. Humanized design, more worry-free to use (AC and DC universal voltage) 3. High quality and high performance 4. The surface is clean and the gloss is even 5. When turning the knob, it can be switched by different colors according to the size, opening and closing of the fire