DS7840 OSRAM, DS7840 Datasheet - Page 39

• Manufacturer Part Number: DS7840
• Description: LAMP, DULUX, S, COOL, 7W
• Manufacturer: OSRAM

Specifications of DS7840

• Supply Voltage: 47V
• Base Type: 2 Pin
• Power Rating: 7W
• Luminous Flux: 400lm
• Length: 137mm
• Colour Temperature Typ: 4000K
• Svhc: No SVHC (15-Dec-2010)
• External Depth: 19.5mm
• External Diameter: 19.5mm
• External: RoHS Compliant
• Lamp Base Type: 2 Pin
• Rohs Compliant: Yes
• Average Bulb Life: 8000h
• Bulb Diameter: 19.5mm

Economical long-life light sources with plug-in bases.
Compact Fluorescent Lamps OSRAM DULUX
Technical Guide
38
3.2.3 Operation of
OSRAM DULUX
S/E, D/E and T/E
with external
starter and CCG
®
OSRAM DULUX
cally for operation with conventional control gear. Integrated in their bases is a special-
ly developed glow starter that has been adapted to the particular requirements of
these compact fluorescent lamps. OSRAM DULUX
bases are intended for operation with electronic control gear, and hence without a star-
ter. Generally, it is possible to operate OSRAM DULUX
18 W and 26 W only) with conventional control gear and an external starter under nor-
mal operating conditions. However, there is no starter currently available on the market
that has been designed specifically for this purpose (see also 6.3).
In this mode, considerable limitations can therefore be expected, such as greatly
reduced lamp life with lamp glass blackening on the electrode side and longer
ignition times. For this reason, this mode of operation is not recommended or
supported by OSRAM.
OSRAM DULUX
55 and 80 W lamps are approved only for ECG operation owing to their high arc
voltages.
®
®
S, D and T lamps (with two-pin bases) have been designed specifi-
T/E 32 W, 42 W, 57 W and 70 W lamps and OSRAM DULUX
®
®
S/E, D/E and T/E with four-pin
®
S/E, D/E and T/E lamps (13 W,
3. Circuits
®
L 40,