The lamp brightness can be adjusted by requirement. It is very to operate. It can touch in medium protection. Such glass. Acrylic. Plastic. Ceramics and so on. Which is very safe. Wide application of voltage range. You can choose arbitrarily between 2. 4v to 4. 5v simple applied circuit. Less peripheral devices. Easy processing. Low cost. Anti power and phone interference. The eft can reach above +/-2kv, the touch response sensitivity and reliability will not affected by the close distance or multi-angle mobile phone interference. Install: Needn’t to touch copper foil directly. The dimming can be processed across acrylic glass(above 3mm) or plastic.