To ask the Secretary of State for Northern Ireland how many energy saving light bulbs were purchased by his Department for use on the departmental estate in (a) 2005 and (b) 2006. (144949)

The Department has a variety of light fittings which accept a wide range of bulbs. No records are kept of the numbers or frequency of bulb replacement and the cost of obtaining these figures would be disproportionate. Energy saving light bulbs are, where practicable, the preferred type of light bulb.