Low volume, lightweight, high voltage electron gun
Low wattage metal halide arc discharge lamp
Low wattage metal halide arc discharge lamp having optimum effic
Low-pressure discharge lamp with tortuous discharge path
Low-pressure gas discharge lamp
Low-pressure gas discharge lamp
Low-pressure gas discharge lamp and method for making
Low-pressure mercury vapor discharge lamp
Low-pressure mercury vapor discharge lamp
Low-pressure sodium vapor discharge lamp
Manufacture of electric lamps
Mercury arc lamps
Mercury lamp for promoting plant growth
Mercury metal-halide lamp including neodymium iodide, cesium and
Mercury-metal halide discharge lamp
Metal halide arc discharge lamp
Metal halide arc discharge lamp having coiled coil electrodes
Metal halide discharge lamp having optimum electrode location
Metal halide lamp
Metal halide lamp having lead metal powder to reduce blackening