Page 73 - Teiber Light Bulbs 2013

Fluorescent 73

BASES

For linear Preheat and Rapid Start Lamps, four electrical
contacts are required, two at each end of the lamp. This Single Pin
is accomplished in the standard line of lamps by the use
of a miniature Bi-Pin base for T5 lamps and a medium
Bi-Pin for T8 and T12 lamps. The OCTRON T8 medium
Bi-Pin lamps may also be operated as instant start lamps
with the proper wiring and ballasts. When operating Bi-Pin
OCTRON Bi-Pin lamps with instant start ballasts, the two
contacts in the lamp holder are shorted together and
connected to the single circuit in the ballast. In Circline
lamps, the cathodes are connected to a four-pin base
located between the junction of the two ends of the lamp.
High Output (HO) and Very High Output (VHO) lamps have
recessed double contact (RDC) type bases. Slimline
Instant Start lamps require only two electrical contacts,
one on each lamp end and have single pin bases.
Pin-based compact uorescent lamps have either 2 pins
or 4 pins. Each 2-pin lamp has an internal starter and
is designed for preheat, magnetic operation. The 4-pin
lamps are designed for electronic ballast operation and
are dimmable. These lamps have no internal starter;
starting the lamps is a function of the ballast.
Medium screw base, compact uorescent lamps have
integral ballasts.

Choke/Starter Operation

Electronic or Dimming Operation

2 G 11 Fluorescent