It's easy to start with LEDs. Brightgreen has options for either installing new integrated downlights and fittings or simply replacing existing bulbs.
How to replace existing downlights
1. Check the fitting on the light bulb you wish to replace – is it a MR16 (two sharp pins) or a GU10 (two stubby pins with a knob on the end)?
2. Try one or two first to ensure you are happy. Brightgreen LED light bulbs work with all transformers and most dimmers.
Drop into a Biome store to see the LED light bulbs and pick up a Brightgreen brochure that explains more - or view it online here » Brightgreen LED light bulbs (pdf)
Convert your energy-zapping halogen downlights to efficient LED light bulbs to make a difference to global warming and your budget.