Also know as desk lamps these provide additional local lighting, e.g. to highlight reference documents when copy typing.

Surprisingly to some, for computer use a relatively low level of ambient lighting is recommended (300-500 lux). This is often too low for viewing documents and thus increases the potential for eye strain. It can also lead to awkward postures as users lean forward to decipher the text in front of them.

As most would know it is impossible to find a light level that suits all the people, all the time. Hence the first solution to try is to adjust the ambient light to suit the majority and then issuing task lights to those who need more light. You will find this is a relatively inexpensive but usually very effective method.

Prices range from £12-£85 depending on the type of bulb used and the level of adjustability provided. Lower prices lamps tend to use 60watt incandescent bulbs and have a limited amount of adjustability (i.e. only the angle of the head can be altered). The higher prices models require halogen bulbs and are angle-poised so permit adjustment in up to 3 planes. The majority are desk standing with a weighted base to increase stability. If, however, space is at a premium then it is possible to purchase models which clamp onto the side or rear of the desk.

Task lights are available from a multitude of places so it is well worth shopping around. Try high street stores and office equipment suppliers. Some companies have discounts for buying in bulk so don't forget to question this when researching suppliers.