[PSUBS-MAILIST] LED light

[Alan via Personal_Submersibles]

Hank,
you sure you got the Watts right?
A ball park figure is 100 lumens per Watt, so that would mean a
240W lamp.
   I think I know the type you refer to; cob on a pedestal. I believe
they would rely a lot on the reflector configuration or the light
would just go straight out the sides. Also car head lights are more
spot lights than flood that we require. It would end up a lot larger
than if you went with the type of led that Cliff, Alec & I are  using. 
These have a built in wide angle, & I am not needing any  reflector.  
You can use a focusing lens if you want a spot.
Was googling & found this 100W round Cree led that may be an alternative
for Cliff. 
http://www.cree.com/led-components/media/documents/ds-CXA3070.pdf
Alan
Sent from my iPad

> On 8/09/2017, at 1:24 PM, hank pronk via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> 
> Hi All,
> I am conducting an experiment with LED lights.  I have ordered two car LED headlight lamps.  They are 24,000 lumen each.  I can fit the lamps inside my full ocean depth housings from eBay  (12,000m)  I am wondering why nobody has tried these bulbs?   They are compact and super bright.
> I have mounted the lamps on Gamma with temporary halogen car headlight bulbs.  I will swap the bulbs out when the new ones arrive.  
> Hank
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