Halogen lamp with an inherent safety effect
Heat spreader for electronic ballast
Heat-sensitive variable-resistance light socket insert with resi
Helical coupler for use in an electrodeless light source
Hid sodium lamp which incorporates a high pressure of xenon and
High efficacy incandescent lighting product
High efficiency high voltage low EMI ignition coil
High efficiency incandescent lamp with diode rectifier
High energy radio frequency pulse generators
High frequency discharge apparatus with hollow waveguide input s
High frequency discharge apparatus with impedance matching
High frequency discharge energy supply means and high frequency
High frequency excited electrodeless light source
High frequency heating device
High gain crossed field amplifier
High gain crossed field amplifier tube and radio transmission sy
High impedance anode structure for injection locked magnetron
High intensity discharge lamp containing electronic starting aid
High intensity discharge lamp having safety device with pyrophor
High intensity discharge lamp including arc extinguishing means