Common brightness options

Indoor >800CD/M2

Semi-indoor >2000CD/M2

Outdoor (locate south, face north) >4000CD/M2

Outdoor (locate north, face south) >8000CD/M2

Viewing distance options

Difference between white SMD and black SMD (take SMD3528 for example)

Normal Malfunction

One lamp black>Change or re-solder the broken lamp,

One row doesn’t work>Check the connections pins or ICs, re-solder or change