Banggood LEDs are... good?

The Banggood Club
1

I took a chance and bought some 10W LEDs from Banggood for the princely price of 47p each.
[Quite a few of us from the Hackspace are addicted to shopping at Banggood…!]

A couple of pics of the ‘White’ one:


First impressions - a nice consistent light and the individual dies on the LED appear to be fairly matched when run at 1mA (as the picture shows).

Some numbers, each at 25-40 deg.C temp (LED very quickly gets hot at high currents, reducing the voltage)

  • 1mA - 7.57v

  • 5mA - 7.82v

  • 10mA - 7.96v

  • 50mA - 8.46v

  • 100mA - 8.88v

  • 300mA - 10.03v

  • 700mA - 11.71v

  • 1000mA - 12.93v

2

I want 200 of those. On my Christmas tree.

Make it happen.

3

White LEDs are on sale again at Banggood

Including these dangerous tasty looking 50W 4,000 Lumen White LEDs

4

I think these on on an xmas tree may represent a fire risk…

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5

What if we added liquid cooling to the LEDs (and the tree)?

I’ve ordered a few 50W ones, let’s see how those look!

6

[quote=“Folknology, post:4, topic:51, full:true”]fire risk[/quote] or as Dwarf Fortressers like to call it… “fun”…

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7

100w of retina-burning power!

8

I think we’ll need @Macaba to finish his 1200W bench supply first, but then we can harness the power of… well, a few 100W LEDs… interesting that they don’t quote a brightness for the 100W ones…

Maybe we should get 12 and test the limits of the supply?

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9

I do need a stable load, LEDs would be perfect… if you had a big enough heatsink

10

I’ll see what I can do to deal with the heat output, how much heat would you expect 1200W of LEDs to output? 120W?

11

I’d expect 1200W of LEDs to output anywhere from 800-1000W of heat.

12

@Takumo Liquid cooled LEDs you say, I have a spare zalman reservator … :smile:

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