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Down lamp is a kind of lamp with more concentration compared with ordinary lamps. They are generally installed in the ceiling, and it requires headroom for the ceiling. There are three kinds of down lights: large (5 cun ), medium (4 cun) and small (2.5 cun).

Application type Structure Power (W) Input 

voltage 

Output voltage/current Typical
efficiency
PF EMI Main contro

lchip

Drive power´s characteristics Data

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Downlamp Isolation 4-7W 100-240Vac 12-23V/300mA 83% N/A N/A WS3254 1.Built-in MOS, few components, low cost.
2.High efficiency, high precision.
3.Owning many protective functions, high reliability.
4.Plug in by one side, convenient for production.
Downlamp Isolation 8-12W 100-240Vac 24-42V/300mA 83% N/A N/A WS3255 1.Built-in MOS, few components, low cost.
2.High efficiency, high precision.
3.Owning many protective functions, high reliability.
4.Plug in by one side, convenient for production.
Downlamp Isolation 8-12W 100-240Vac 25-40V/320mA 88% 0.89 pass WS3252 1.High efficiency.
2.Owning many protective functions, high reliability.
3.Got through EN55015EMI test.
Downlamp Isolation 15-25W 175-265Vac 21-36V/700mA 90% 0.9 pass WS3252 1.High efficiency.
2.Owning many protective functions, high reliability.
Downlamp Non-isolation 15-24W 175-265Vac 50-80V/300mA 92% N/A N/A WS3468 1.High efficiency.
2.Low cost.
3.Open circuit voltage is adjustable.
4.Owning many protective functions, high reliability.


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