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.
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.
Update: The item is now (according to the shipping agent) at my country’s warehouse and I should be able to pick it up within this week with me, you can now start ordering.
Economy shipping (Registered, SAL) now available for non-ASEAN countries for $5.25. This shipping methods takes 3-7 weeks on average to arrive (not including customs clearance).
“Bare-Fare” Shipping (SAL, non-registered, untracked) is also available (3-7 weeks not counting customs clearance) at your own risk for $2.5.
If you wish your item to be shipped by one of these two methods, please tell me in the PM. Otherwise, I will assume the shipping method “Priority” by default.
Depends on how you want to power this. If you want to just power it off the mains, you just look around for the “100w led driver”. There are plenty of them over the Amazon/eBay/Aliexpress. Here’s the example (this isn’t the best quality available, but you could also search around). You might also want to pay attention to the efficiency and power factor of the drivers if electricity bill is a concern.
On the other hand, if you want to go with a more DIY-ish route, or you want to power this off a battery, You could also buy a Buck/Boost converter (preferably with Constant Current feature) and hook it up to the Battery/DC power source. DIY perks made a video on how to wire it up. (It’s a different COBs but it’s functionally the same as this one).