Efficient lighting comes in a range of colour options including ‘warm white’ (the same as standard light bulb colour) and ‘cool white’ (a cooler colour that's good above work benches). Look on the box for colour information.
Renovating or Building
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Replace all lamps at once
Consider group relamping. Fluorescent lamps can lose 20%-30% of their light output over their service life. Many lighting experts recommend replacing all the lamps in a lighting system at once. This saves labour, keeps illumination high, and avoids stressing any ballast with dying lamps.