The book, written by a nearby pole tube How many Watt size. By the normal use of the House will have 2 sizes 18 W 36 W and by the lamp is the size of the different tubes, depending on the manufacturer.
There are letters written near the cap that has a few watts. Normally used as a second home size is 18 W and 36 W lamps being used by the size of tubes that differ depending on the manufacturer.
The letters written in the vicinity of tube connector that is the size of a few watts, commonly used as มบ home will be 2 size is 18 and W 36 W by bulb used is the size of the tube at different ขึ้นอยู่กับผู้ผลิต.