Easily-assembled compact self-ballasted fluorescent lamp

Edge sealing electrode for discharge lamp

Electric discharge lamp

Electric discharge lamp having ceramic luminous tube

Electric discharge lamp with an improved sealing structure...

Electric high-pressure discharge lamp

Electric incandescent and discharge lamps having doped quartz gl

Electric incandescent halogen lamp with barrel-shaped bulb

Electric incandescent lamp

Electric incandescent lamp

Electric incandescent lamp and method of manufacture therefor

Electric incandescent lamp for a motor-car

Electric incandescent lamp having filament sleeves engaged by en

Electric incandescent lamp with a quartz glass lamp vessel and q

Electric incandescent lamp with infrared reflecting layer

Electric incandescent lamp with sintered body glass plate

Electric lamp

Electric lamp

Electric lamp

Electric lamp