Lamp with improved color rendering
Light balance compensated mercury vapor and halogen high-pressur
Lightening device for metal halide discharge lamp
Long life metal halide lamp and an illumination optical apparatu
Long-lasting metal halide discharge lamp
Low mercury arc discharge lamp containing neodymium
Low mercury arc discharge lamp containing praseodymium
Low wattage fluorescent lamp having improved phosphor layer
Low wattage metal halide lamp
Low-pressure discharge lamp
Low-pressure gas discharge lamp having a mercury-free gas...
Low-pressure gas discharge lamp with a mercury-free gas filling
Low-pressure gas discharge lamp with a reduced argon...
Low-pressure gas discharge lamp with phosphor coating