At first I was afraid that - is illuminated essentially only the Innnenbereich the machine - because of the arrangement of the LEDs. But since this bulb is longer than standard bulbs, looking out a part of the light source from the machine head, so that not only look out the LEDs on the front side, but also some of the side LEDs and thus ensure a good overall and pleasant working light.
I have bought 2 of these LED bulbs, in order to convert a sewing and overlock.
Consumption is - on the lamps - 3 W, not 2.5 W, as indicated by the seller.
The price, however, is not really! Added to this are the shipping costs. A dearly bought advantage ...