I have an LED DRIVER on several Aquarium lights...looking for info on the LED dr

[OutThere]

I tried search first. all i found was a chip with the same company logo that was a driver of some sort for a SMPS. I believe the company is iweek.cn. I went to their website clicked translate to english when i searched reverted back to Chines. the chip is an LED driver DP9511. Its's a submersible tube with an LED strip. I have repaired several ( replaced burnt out SMD LED) but they only last for a day then I checked the power output way high. I checked the power output of a new one and it was 3v x the number of smd led's. so was wondering if some could get me a data sheet or equivalent data sheet. Something else crossed my mind, well actually 2
1. whatever the count of LEDs they seem to have the same chip. only parts on the pcb are the afore mentioned chip, an electrolytic cap, and a small power resistor. do they use an RC network to select the output voltage?
2. it's possible that the light strips were defective to begin with the higher voltage, like i said the new one was led count times 3v

   I think humidity/ condensation may build up and short out the unit......some this happens to others work fine so not sure

I think i found what I was looking for  if you want to still look to...great or comment on how the chip functions would like to hear that also

https://www.scribd.com/document/662331058/DP951X-REV1-0-CN

[BennoG]

Usually they do constant current output, so the number of leds does not matter.
When measured with a unloaded output the voltage can be high 70V is no exception.

You need to measure the output when the circuit is loaded and the leds are working.

Benno

[tunk]

The resistor connected to the CS pin probably sets the
current - doubling the resistor value may half the current.

Edit: Currently I'm playing around with an LED driver
based on an LC6640 chip. On that it seems that increasing
the resistor value, the max output voltage is reduced.
It may also be the case for your chip.