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These halogen G9 bulbs are fully compatible with normal dimmer switches, and do not require a transformer.
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The small size of G9 halogen capsule bulbs means that many modern decorative light fittings utilise a G9 bulb, as they will fit in small glass shades where standard bulbs wouldn't fit.
(When installing a halogen bulb, make sure that you do not touch the glass part of the bulb with your bare skin - e.g. fingers, as the natural oils from your skin can considerably reduce the life of the bulb.
Our G9 lamps range includes:
g9 bulbs
g9 capsules
g9 halogen bulbs
A G9 bulb will generally last for about 1000 hours. This isn't a long time if it's used on a regular basis in fact it will be about 6 months on a main light fitting that you use ever day, so it's worth keeping some spares in the cupboard. It also cheaper to buy a larger quantity.
Halogen bulb, mains and low voltage downlights can be dimmed using normal light dimmers, althought with low voltage you must make sure that your transformer is compatibile with the dimmer switch.
Be careful choosing lights for bathrooms! They need to conform to the electrical regulations which depends upon their actual position - see bathroom electrical zoning page and the fire rated downlights information below.