Fluorescent light unit with dual light levels

Details Fluorescent light unit with dual light levels Fluorescent light unit with dual light levels

1980-12-19

1982-11-09

LaRoche, Eugene R.

Electric lamp and discharge devices: systems

With cathode or cathode heater supply circuit

Plural cathodes or heaters in the load device

315 53, 315 58, 315100, 315101, 315200R, 315309, 315DIG5, H05B 4118

Patent

active

043587097

ABSTRACT:
A screw-in fluorescent light unit having two light levels, for use in a 3-way socket. A reactor ballasts the lamp for high light output, and a resistor is added to ballast the lamp for low light output. A bilateral switch device is connected across the resistor to facilitate lamp starting at the low light output.

REFERENCES:
patent: 2320424 (1943-06-01), Gates
patent: 2350462 (1944-06-01), Johns
patent: 2652483 (1953-09-01), Laidig et al.
patent: 2817004 (1957-12-01), Baumgartner et al.
patent: 3836814 (1974-09-01), Rodriquez
patent: 3866088 (1975-02-01), Kaneda et al.
patent: 3878431 (1975-04-01), Petrina
patent: 4178535 (1979-12-01), Miller
patent: 4270071 (1981-05-01), Morton
patent: 4284925 (1981-08-01), Bessone et al.

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