Quicky review, Xiaomi USB lights

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Tumbleweed48
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Quicky review, Xiaomi USB lights

https://www.fasttech.com/products/0/10012025/4474701-authentic-xiaomi-po...

I just received three of these from FastTech (bought and paid for, not review freebies) and I’m really impressed.

These have ten emitters behind a diffuser, with a very pleasing tint. Side by side, I literally cannot tell the difference between these and a 219B. They appear to be glued together and I don’t really want to wreck one yet, so for now, no tear down.

The lowest setting is definitely a sub-lumen ‘moonlite’, scaling up through five levels to a room filling high that feels like a lot of lumens. They claim it consumes 2.5 watts; I’m not inclined to do the math right now but it’s enough light that you can function quite normally in a good sized room.

The next level above moonlite is a nice, comfortable reading light of perhaps six or eight lumens. I haven’t done any run times (partly because I just got them, and I don’t know the true capacity of my power banks), so I don’t know how efficient they are. They are made of flexible plastic, so their thermal qualities aren’t going to be great – a few minutes on high didn’t give any palpable heat and I think I should have been able to feel some by then.

All in all, I think it’s a great light for five bucks apiece.

Edited by: sb56637 on 09/02/2017 - 12:12
will34
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Yeah it’s a very nice USB light, a very curious thing about it though:

The current draw on the 3 lowest modes is the same at ~200mA, the reason for this is to avoid self shut down due to low current when used with powerbanks. I guess it uses a small FET inside to burn the power, it kinda defies the purpose of power saving on the low modes but it is a necessary feature to work with most powerbanks.

Tinderbox UK
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I bought a few of these but i think they must have been fakes(cheap price) as they only lasted a couple of day`s as bending of the light causes connection problems.

I have had the touch sensitive and the non touch sensitive, Neither have lasted.

 

John.

Maha C9000 – LaCrosse BC-900 – Floureon BT-C3100 V2.2 – Accumanger 10 and 20 -Thunder AC6 LiitoKala Lii-100 – Cozypony 24W Solar Panel – Soshine H4 – Soshine T2 – Soshine E4S

will34
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Where did you bought them from and how much?

Haven’t tried mine extensively but it seems to be well built. However I ran the lowest mode for a couple hours and the area near the button was very warm because of the power being burnt, not sure how would this affect on the long run.

Tinderbox UK
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will34 wrote:
Where did you bought them from and how much? Haven't tried mine extensively but it seems to be well built. However I ran the lowest mode for a couple hours and the area near the button was very warm because of the power being burnt, not sure how would this affect on the long run.

 

EDIT: I got them from AliExpress for around $1 each, It`s been a while.

From the listing.

"updated finger touch Keypad Led light Usb night light for Xiaomi power bank for Laptop PC computers,Portable mini USB light A18"

 

John.

Maha C9000 – LaCrosse BC-900 – Floureon BT-C3100 V2.2 – Accumanger 10 and 20 -Thunder AC6 LiitoKala Lii-100 – Cozypony 24W Solar Panel – Soshine H4 – Soshine T2 – Soshine E4S

mapache
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Tinderbox UK wrote:

I bought a few of these but i think they must have been fakes(cheap price) as they only lasted a couple of day`s as bending of the light causes connection problems.


I have had the touch sensitive and the non touch sensitive, Neither have lasted.


 


John.

I bought a few of the original non-touch version from BG for ~$1.00 and they have been reliable. One of them has two tight 90° bends and well over 100 hours of use.