This is product manufacturers code 641772899 by Schiefer. If you need to contact us about this product, please quote our product reference of 9138.
Halogen spot bulbs produce a bright warm light and they are fully compatible with dimmer switches.
This bulb is larger than your standard GU10 bulb as it is 63mm across and has a dichroic reflector. It is also brighter and uses more power (75w) and therefore is in no way low energy. It is regarded as a 'flood' bulb with a 38 degree beam of light.
This current batch from Schiefer Lighting is in plain white marked packaging.