Rank: Forum user 
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One of my sites have changed their warehouse lighting from bulbs to fluorescent strip lights.
The lux levels haven't dropped but I have got one worker who is claiming it has affected his vision at a certain distance.
No one else has complained but I don't want to risk him having an accident or near miss.
The worker is quite militant and knows how to play the system but I have to take it as a genuine complaint.
I wondered if anyone has encountered similar complaints when ligthing has been changed.
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Rank: Forum user
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If the overall lighting levels have not dropped you might suggest an eye test for the individual, perhaps he has a problem?
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Rank: Forum user
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Have you looked at HSG 38 Lighting at Work. That may provide some answers for you
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Rank: New forum user
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CIBSE Office Lighting -may be a helpful read, it would be a possibility that glare is an issue, installing diffusers close to the worker can be helpful.
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Rank: Super forum user
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Cannot really comment on this without details of the lighting plan/floor layout and wall and floor details.
Tubes will cast shadows that fall differently to 'Bulbs' (whatever they are) Do you mean incandescent or mercury vapor?
A bit surprised that 'low bay' lighting has not been used.
If the lighting was designed by a competent company then there should be no problems.
Twin lamp, high frequency fittings better than singe.
Eye test a good idea.
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Rank: Super forum user 
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Another 5ww lighting design & change over?
Was the contractor who did the lighting change competent?
It seems from your posts that they were not!
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Rank: Forum user
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Still trying to find out who carried out the work, what the new type are, reasons for it etc.
The original lighting was incandescent.
The workplace is a warehouse with "picking aisles", racking, general warehouse operatives, FLT, pick truck actvities.
Apologies for lack of details, I am sure we are not the only company who goes off half cock without looking at potential bumps in the road.
The worker is a union rep and is the only one from 120 (aross shifts) who has commented on it.
I will look at the eye test route.
thanks
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Rank: Forum user
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Paul,
From the information given, you cannot decide if the electrical contractor is competent!
Lux levels havent dropped, they could have reduced the number of fittings to a different type.
Could have been a fitting that required a warm up period now it could be HF fitting, instant light.
Too early to start drawing conclusions, the op needs to give more info.
tony
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Rank: Super forum user
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Lighting installation or change requires professional input as there are several variables that have to be considered. The authoritative guidance is from CIBSE.
The lighting designer has to take into account information regarding the movement of goods and proposed/current stocking arrangements. Specifically, the location of fixed items such as racking is critical, as luminaire layouts must be planned according to the layout of the aisles.
Luminaires are available with optics tailored to the requirements of high rack lighting (> 5 m).
These luminaires have a high downward luminous intensity to maximise penetration into the
aisles. A sharp cut-off in transverse plane ensures minimal light waste on the tops of racks and
a broad axial light distribution maximises luminaire spacing along the aisles.
Consideration should be given to localising the lighting according to occupation of
the access aisles, e.g. pull cord switching or presence detection controls. This will avoid wasted
energy due to all the luminaires being needlessly switched on.
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