Fit high frequency control gear (ballasts)

Capital cost is approximately £30 - £50 per fitting. The energy saving available is around 20%.

When linear fluorescent luminaires contain high frequency electronic ballasts, energy consumption is around 20% lower than with conventional magnetic ballasts. There are also a number of other advantages:

No flicker operation providing a more comfortable working environment.

Longer tube life.

Dimmable fluorescent lighting (assuming high frequency dimmable ballasts are bought). This enables the linear fluorescent lighting to tie in nicely with daylight-linked control, generating substantial energy savings.

The capital cost of this measure is relatively high and, as a result, although the energy savings are significant, the payback period on the capital investment tends to be several years. However, should daylight linking be included, payback periods can be quicker.