YouOKLight-Rechargeable,Portable Flood Light-Review

Other Types of Lights LED Lanterns
1

YouOKLight-Portable Flood Light from GearBest- Review

Hello
I am testing for you a fully flood portable lamp,with built in rechargeable battery pack.
The lamp is suited for different indoor or outdoor use-for work,camping,emergency,domestic illumination, construction industry,property management,and other activities.
The lamp was provided by GearBest for test and review.
360 View of the Light- Viewer controlled.My first of this type!
Available full screen!
Enjoy!

media.megavisor.com/player/embed?72dc3eb9-71f9-45a7-a63f-250de6325722

Product page at GearBest- http://www.gearbest.com/led-light-bulbs/pp_158215.html?utm_source=flashlionreviews.blogspot
Product Coupon code: 10WFloodlight

The YouOKLight comes in a cardboard box.


In real world work environment.

The angle of the light is quite wide.
Sufficient when using the lamp as an ambient light or for some work,that does not require a lot of light.
The beam is quite floody and does not provide high brightness at long distance.
If you are working something serious,you still may need a good headlamp.
The light coming from the LED is Cool White with some bluish tint.

Two brightness levels- High/Low.
Comfortable handle thanks to the foam tube added. Could be a plus if you plan to carry the light for long periods of time,outdoor.
The size and form are quite good for stable grip.

The YouOKLight comes with two chargers-for indoor and outdoor charging.
Home charging adapter with output 8.4V, 1A
Car charger with output 8.4V, 1A



The main specifications can be seen on the back of the plastic housing.
The Lamp can be detached from its stand.Just have to unscrew the connecting bolt.
There are few openings allowing to mount the lamp to different stands,etc.
On the back of the lamp are mounted both switches and the charging port.I should note the lack of any marking indicating,which switch is for On/Off and which for mode changing.
It seems easy to remember,but when you are in the dark and even on light is somehow hard to find the right switch.
It is needed some time to get used with the position of the switches.The charging port has water sealing,rubber cap.
Both switches are also protected by clear covers. The light can be used in humid or dusty environment.
Below is a Run/Time graph for High mode.
The maximum battery voltage is 8,4V. The LED is for 6V voltage.
The voltage is limited to the required level by a resistor.
The second-lower mode is also adjusted with another resistor.

Usually so wide angle beam is hard to measure with a regular integrated sphere.
I tried to measure the lumen output in a cardboard box (which was quite accurate with regular flashlights,in the past) and got this numbers:

Max brightness on High mode 556 lumens
Max brightness on Low mode 152 lumens
The used LED is powered with 6,2V on High mode and 5,5V on Low mode.
Current draw on High mode I=750mA (4.65W)
Current draw on Low mode I=190mA (1.045W)

Here is the front of the lamp,disassembled.
Metal frame and thick tempered glass are mounted on the front.

Below is the back of the lamp disassembled.
There is a battery pack of four batteries,glued in the plastic housing.
They seem to be 18650 batteries, 2x2200mAh in series with another two in parallel connection.
The lamp is advertised as 4400mAh,7.4V.
I did not cut the wrapping(yet) to see their brand.

Here is a close up picture of the limiting resistors.
The front glass is protected from dust and water with a thick silicone gasket.
The big LED is mounted directly on the metal housing.There is quite enough thermal paste between them.
The whole back side of the housing is formed as cooling fins.The heat dissipation is quite good.
Two screws ensures tight press for good heat transfer. There are two more threaded holes,but without screws added.
Thick enough wires,well soldered.
The reflector is made of very thin metal.It reflects small part of the light and does not have the purpose to focus the light in small hotspot,so more special reflector is not needed.
Here is a "short" video,if you want to see me assembling the light and playing with the switches.
I am not good in taking videos(and no voice as usual).I just had to do a video.
I activate the light at 6th minute(in case you have no time to watch the rest )
2

Flashlion,

Nice, detailed review.

I puzzled as to how to utilize this light. It doesn’t seem quite bright enough to use as a general purpose floodlight. Its range seems to be about 10 feet for performing any detailed tasks. It might have been marginally useful if the beam were concentrated into a 90-degree cone, instead of being spread over 150-degrees. I can’t see lugging this thing around for camping, where a lantern would be much more effective. And with a li-ion multi-pak, I wouldn’t store this in the trunk of my car for emergency purposes. The only practical application that I can imagine would be to buy multiple units and set them up in various locations to cover the intended target area. And even at that, I’m not sure I’d like working for extended periods under the blue haze.

3

Oh, pot metal, hmmmm. Looks really nice, very convenient. 8 - 18650’s inside? 2S4P?
How well does pot metal move heat?
I would buy some, I think a good retail price would be…………$39.95
Wait a minute, didn’t I see these at Costco last week with the high end name Snap-On on it?

4

This is a great idea, and has marketing potential for contractors/building tradesmen after some improvements. Often, having readily accessible AC power isn’t always possible when building new construction

5

Absolutely! And, not having to worry about whether or not its going to work or not. Li-Ions carry their voltage for ever it seems like. Matter of fact, I just found an old S2 I built from scratch that I thought I gave away to someone. Had to have been at least two years since I’ve seen that flashlight. I pressed the clicky on the end and it willingly and happily it seemed, fired right up. All modes intact and working for what seemed full power. Checked the battery later in the evening and found a healthy 4.08 volts! Nice, from some old Sanyo 2200 Laptop pulls from years ago. So yea, it is a great idea. God that would have been great using it under the houses I used to repipe. I really think we skipped a few generations of lighting technology when we were presented with these cute little nipples that blast tons of light forth!

6

nice review, cool gif!!

7

Thank you all for the comments!

Thanks Miller. I love this type animated GIFs. I am currently trying to make drag-active 360 views.

Four batteries 2S2P.
It seems to take the heat reasonably fast. I can feel warm air coming from the cooling fins.
But the power this housing have to deal with is not so high.In my opinion this light could take more heat.
(I have a DIY home work light with 3 similar LEDs(warm white) mounted on a base without cooling fins.It gets hot,but keeps running).

8

Finally,I managed to complete my first viewer controlled 360 degree view of an object!
Check it out in the beginning of the review. Can be watched high resolution,fullscreen! Enjoy :slight_smile:

9

Your reviews have always been great! The viewer controlled 360 view….spectacular!

10

wonder if there is balance chargeing inside the battery pack, and over charge protection :question:

11

That’s a really neat trick!!! :beer: :beer: :beer:

12

Just curious… are the individual Li-Ion cells protected or is there another circuit board we can’t see? as there do not seem to be an actual charging circuit or protection circuit visible to prevent over charging or over discharging of the cells if the light is left on for to long or left plugged in the charger to long, then explode like a little red grenade.

13

As an electrician This could come in handy. More often than not we are the ones there working in the dark for a good bit of the job (trying to get the lights on). Something small, lightweight, and easily positioned is always welcomed.

I do agree about the blue haze but that looks like it could be easily fixed.

14

Looks great and works like a charm on my phone!

15

Did the manufacturer install the main housing upside down?

. . .

Comparison of what it looks like now, versus how it would look with the power switches on top.

. . .

Unscrew the 4 mounting screws, rotate the unit 180 degrees, replace the screws, and the design would make a lot more sense. :face_with_monocle:

16

Most likely the info sticker is upside down.You can see on the GearBest website,their sticker is in proper direction.
It seems more convenient,but for some reason they decided to mount it in this position.May be better protection for the switches.I don’t know. All similar lamps(some of them identical,just other brand) are assembled in the same way.
As you noted,it’s easy to turn it to the preferred position :sunglasses:

That’s a good question. I am interested also what is the battery brand. I will pull out the battery pack,but this when I have some more free time.I want to do it carefully,leaving the lamp still usable,after my intervention. :blush:

17

wow, i actually seem to like this product at first look. Its interesting.

like someone up there said? I am working on a house (complete rehab, down to the STUDS and all new everything) and i am the electrical guy, and it looks like i am going to be doing the drywall and half the plumbing too (i do supply plumbing, i normally dont play with waste lines)

working on the electrical room by room? i have to shut off the main power to the house a lot of times, for extended periods. A couple hours is typical at a time.

I mean, I have a headlight on for me to work in the basement on the wiring for 2 hours? but, the homeowner i am working with could use a light like this while i have the power off for a while. Once i have the power back ON? the light could be charging.

if it runs for 2 hours on HIGH mode? low mode for 8 hours would be spectacular…

since this is budget light forums? i suppose i am not the only guy here, getting scratch-built IDEAS, lmao…

i mean, if 4 li-ions is GOOD… then 8 or 12 of them is BETTER, you know? (run time)

i am thinking “whole shift” working, or, 8 to 12 hour run time for a night/weekend of fishing/camping…

18

I unwrapped part of the heat shrink.
The battery pack is fixed in place by silicone glue.The batteries also have some glue to keep them together.
I can’t go further with disassembling,because I have to keep the light functional :blush:

There is no visible electronics board on the sides.Measuring the length and width,there is no much space on the back of the battery pack,too.
Both wires go at the back side,so there may be some small board,but nothing can be confirmed.
Purple batteries,identical to the Samsung 26F. No any markings on the opened side.

19

i would strip it and use it as a host,
looks like there is room for more then just 2 batteryes, so i would try to fit in 6 batteryes parallel, useing a simple USB lithium charger.
Qlight driver and an XM-L or 2, would make it much more efficient setup with more mods :slight_smile:

i have few 500W halogen lamps wich i wanted to do the same, but they dont have a flat hitsinking to mount the LED like this one have,
also they dont have a proper place to put the batteryes in like this one have, and i wonder if the reflector would be any good,
so this one would be realy nice host.