Table Lamp Test - 4 Found Unsatisfactory in Some Test Items -
CHOICE # 407 (September 15, 2010)
A safety test on table lamps showed that 3 out of 10 tested
samples passed all the test items. For the rest, 3 were found with
insufficient markings and instructions while 4 were unsatisfactory
in some test items.
Results of the test, conducted by the Electrical and Mechanical
Services Department (EMSD), were reported in the latest issue of
CHOICE magazine. 10 samples were tested with reference to
international safety standard, including 9 table lamps and 1 clip
lamp, with prices ranging from HK$58 to HK$899.
Deficiencies in construction were found in 2 samples.
Inappropriate soldering of wire on the printed circuit board was
found in one sample. In case the soldering failed, the wire could
shift resulting in bad contact or insufficient insulation distance.
The adjustable lampshade of the other sample failed the stability
test and toppled after the lampshade was adjusted in the opposite
direction to the lamp base and placed on a level inclined by 6
Regarding wiring, one sample did not have the power cord
properly fixed and failed the pull test. The internal wiring of
this sample could be strained if the adjustable lampshade rotated
by more than 360 degrees. In addition, the maximum wattage marked
on this sample was higher than its actual rated wattage which may
mislead users into using higher wattage light bulb which might
result in overheating.
Other safety issues included: inappropriate earthing wiring,
insufficient insulation distance on the printed circuit board,
inadequate material resistance to flames, and missing markings and
warning statements on certain samples. The EMSD had followed up
with the suppliers concerned on improvements and the suppliers had
undertaken to make corresponding improvements in the quality of the
The September issue of CHOICE has the following advice to
consumers on the safe use of table lamps:
- Purchase table lamps with detailed labelling and
- Do not use light bulbs or tubes that exceed the maximum wattage
indicated by the manufacturer.
- Do not cover the table lampshades with paper or cloth to
adjust the lighting level.
- Use dimmable compact fluorescent lamps for table lamps with
- Unplug the lamp from the socket when changing or cleaning the
light bulb or tube.
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