Apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; lasers not for medical purposes; light emitting diodes (LED); laser diodes, especially power laser diodes, semi-conductor laser diodes; semiconductor components in the nature of semiconductor wafers, light conductors being laser diodes, opto being optical couplers, sensors, namely, optical, movement, touch, sound, ultra-sound, microwave, light, infrared (IR), color, temperat...

ballasts for fluorescent lamps

Electronic ballasts