What would i need to run this 100w led with 12v?

S

stuee

Member

• Oct 1, 2013

• #1

Hi. i want to convert my already setup / mounted spotlight on my boat to this,
**broken link removed**

100w led chip. i was hoping to pull the guts out my light so only the silver cone and lens was left and put this at the end of the cone.
What would i need to power this from the 12v marine battery?

thanks
Stuart

 

ronv

Well-Known Member

Most Helpful Member

• Oct 1, 2013

• #2

Something like this:
**broken link removed**

You will need to mount the LED to a big heat sink.

 

ghostman11

Well-Known Member

• Oct 3, 2013

• #3

did you read the feedback for the led? its actually 30W run at 30V

 

ronv

Well-Known Member

Most Helpful Member

• Oct 3, 2013

• #4

That's why he needs the boost regulator.

 

tcmtech

Banned

Most Helpful Member

• Oct 3, 2013

• #5

did you read the feedback for the led? its actually 30W run at 30V

Click to expand...

Huh?

The one the OP has a link to clearly states it needs 28 - 32 VDC at 3000 - 3500 ma. My math says thats about 100 watts.

 

ghostman11

Well-Known Member

• Oct 3, 2013

• #6

i read the reviews i didn't do any maths or workings out i didn't use a fag packet or pen or paper! that's for you clever people to do! now if ive got it wrong that's good, it means all is normal!

 

alec_t

Well-Known Member

Most Helpful Member

• Oct 3, 2013

• #7

Even 30W is going to need a massive heat sink. And you can always water-cool it .

 

ronv

Well-Known Member

Most Helpful Member

• Oct 3, 2013

• #8

Here are some heat sinks and even some complete 100 w. units.
https://www.ebay.com/sch/i.html?_tr...nk&_nkw=100w+led+heat+sink&_sacat=0&_from=R40