Linear halogen bulbs operate on 220 to 240 volts and are usually coded R7s

To make it slightly confusing different manufacturers state different lengths fot the short or long bulb. However the short or long bulb from any manufacturer can be used in a short or long fitting respectively.

To choose a lamp quote the reference letter:




























The Osram Haloline energy saver bulb uses about 20% less power:

Standard R7             Haloline Equivalent

100 watt                         80 watt
150 watt                        120 watt
200 watt                        160 watt
300 watt                        230 watt
500 watt                        400 watt