印刷方式
凸版印刷, 丝网印刷, 数码印刷, 胶版印刷, UV印刷, 压纹印刷
Name
UV Purple Light 395-400nm LED Keychain
Bulbs
F5 LED(UV Purple Light LED)
Battery
2X CR2016 3.0V button cell(included)
Switch
Press Momentary On/Off(2 mode)
Usage
Promotion gift, money detector, read invisible message