Budget 5700k CRI 95 100w COBs [Items in Stock]

If more Canadians are interested, I can get more so shipping will be less expensive for us overall.

Edit: Will only be ordering if other Canadians want it.

I’m attracted to COBs but have no use for them. They are perhaps great for lighting projects in the house (of which I have none).

Good luck with the sales, I think it is a nice initiative.

Why would I buy this instead of a Bridgelux Vero29? The circular shape of the Vero 29 seems like a huge advantage.

For indoor lighting, I think, the 3500K variant could be a very good match for my needs. Thank you maukka for showing your results :slight_smile:

I cannot say for sure yet, but maybe I would need 3 of them.

The good thing about LEDs of this shape is that they use the same mounting holes as these types of floodlights (which is pretty much the only moddable types sold where I live):

If you are looking to retrofit one of these for higher CRI or something similar, I thought these LEDs are worth considering.

I wonder how much the output drops after being driven at 100 watts for 500 hours under the usual heat sinking an outdoor floodlight housing normally offers?

I wonder about that too. I think it can’t get any worse than the stock LED that originally comes with the flood light.

On a side note, I have retrofitted a 20w (in a 20w casing) and have it sit on my desk running 8-16 hours a day in a tropical climate for 9 months now. The light hasn’t seem to fade much from when it was first run.

I might be interested in 2. I wouldn’t mind a round one of a similar size.

Let’s count the number of people interested so far:

Here is the interest/order status:


BlueswordM: (Seeing if other Canadians want it)
Tc418: 3pcs [PAID & Shipped]
XXX-Man: 1pcs

HONDARIDER: 1pcs [awaiting payment]
adam7027: 3pcs [PAID & Shipped]

Did seller provide you with the continuous (i.e. every 30 minutes) data for the first 100 hours of those led’s ? What kind of bond wire they are using ? The fill is silicone or epoxy based ?

It’s telling the guy who has ben buying in China 250k bulb’s and flood lamps per month… ;). The big COB are the easiest for small batch production, but the trickiest for long time usage.

I have reached out to the manufacturer yesterday.

The LED I will be selling is Flip-Chip type. There will be no bond wires inside these LEDs. The filler is silicone based, as usual.

They are currently doing the light decay test for me. The result should be available in a few days.

Huh, that means better durability.


Put me Down for 3.

nice, would place it in something like this if It could work. if the LED could have an Enclosure;


The LED uses the same mounting holes as this one.

However, the reflector and lens like this one can be a little tricky to install, since my LED won’t have any holes (like the generic 100w ones) matching the prongs of these reflectors.

Here is the reliability test data from the Manufacturer. They tested on their 80 CRI version though, but the difference should not be significant.

I would be interested in 1 5700k

Interest list and shipping cost updated.