I ordered a while ago temperature controller from china. It was supposed to be AC 220 volt version but when I received it the back of the device said it was 12 volt DC. The item number was right on the packing so I got curious and opened it. the insides looked different from the insides of a 12 volt version that I saw on a youtube video. this has transformer in it and this led driver http://www.datasheetcafe.com/bp9022a-datasheet-led-driver/
I couldn't find any rectifier bridge in it. Here are some photos of the thing.
I couldn't find any rectifier bridge in it. Here are some photos of the thing.
Attachments
-
133.8 KB Views: 25
-
96.4 KB Views: 22
-
129.4 KB Views: 23
-
149.7 KB Views: 22
-
101.7 KB Views: 22
-
112.6 KB Views: 21
-
100.2 KB Views: 23
-
121.7 KB Views: 24