Electronic ballasts can be divided into 4 series and 15 varieties:
1, one for one, the common type and light box type electronic ballast is divided into 20W, 30W, 40W, a total of 6 varieties
2, one for two, the common type and light box type electronic ballast is divided into 2 X 20W, 2 X 30W, 2 X 40W a total of 6 varieties
3, the electronic ballast for ring lights is divided into 22W, 32W, 40W, a total of 3 varieties
4, quartz germicidal lamp ballast is suitable for 35-60W a total of 1 variety
Note: 20W, 40W are for T10 and T12 tubes, and 18W and 36W are for T8 tubes. So sometimes we talk about 20W, it can also be understood as 18W, and 36W of T8 tube can also be understood as T10, T12 40W, because their ballast is universal.
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