Showing posts with label portable. Show all posts
Showing posts with label portable. Show all posts

Friday, February 19, 2016

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.

Product page at GearBest- http://goo.gl/WG7Srm
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 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.


Product page at GearBest- http://goo.gl/WG7Srm
Product Coupon code: 10WFloodlight

Here are some links to other categories at GearBest.

  Outdoor floodlight:  http://goo.gl/myv3ZP 
  Indoor light:   http://goo.gl/4n3L11
  More Knives for selection:   http://goo.gl/FCCY1O


I don't make any money from my blog or my reviews. Using the links and coupon codes I post on my blog will only help me,eventually to get new review samples. 
Thanks for your support!

 

Monday, December 21, 2015

Aootek Portable,Rechargeable Camping/Home use Lantern

Hello
I am reviewing for you a new portable LED camping lantern provided by Aootek.
The lamp has buit-in Li-ion battery,which can be charged via special charging dock station,included in the set.

The lantern is composed of yellow LED light source,which illuminates through matte,diffused plastic housing.
This ensures nice,pleasant for the eyes wide floody light,suitable for camping,reading,in-house use and many other. The yellow light is a little uncommon in flashlights and other lighting devices,but is more pleasant for the eyes compared to the cool white light,especially in the dark. I did not expected good color rendering,but after turning the light on,I found it pretty good for any use. looking directly at the lamp,the light seems quite yellow,but looking away at some distance,the light does not annoy at all. 

Brightness level can be adjusted via rotating switch,working as a potentiometer. 
The light can be adjusted infinitely,with no defined steps.

Max brightness is quite enough for most uses that come in mind. It seems about 100 lumens,but I can't measure it in my setup.The light comes from a very wide surface,that requires a special equipment.
The lowest brightness is quite low. I would like a little lower output for using in full darkness,though.

At the top of the rotating switch is added a button for another switch.It's purpose is to activate the automatic timer function,which shuts down the light after 10 minutes. It could be called a sleep timer.
A nice feature if you use the lamp as a nigh light,before sleeping.


The charger is lightweight,can be transported easily. Can be connected to main power supply.Depending on your country you have to use appropriate adapter.I use US to European adapter.

The Aootek lantern has an intelligent function for auto-starting in case of power outage.
Just keep it on the charging dock,connected to the main power supply. Once it detects that the power has shut down,the lantern will activate by itself,not leaving you in full darkness.


The lamp is lightweight as well,which is great if you like to carry it on camping.It will not add much weight to your backpack. The lantern itself(without the dock) weights just 220 grams/7.76 ounces.
There is a thick strap added on the top of the lamp.It can be used for holding the lamp,or for attaching it.

According to the specifications,the battery is Li-Ion with capacity of 1600mAh. Charging it with 500mA should take about 3 hours.But I did not measure the charging current yet,so can't confirm for now.

Here is a full run test on maximum output.
The lantern was set to max brightness and left static to measure the brightness change during the time.
This test was after the first charge of the battery,so it is possible to get a little more run time after few more times recharging. The output holds well for about 6 hours.

After using/testing the camping lamp for some time my impressions are only good.It is quite easy and convenient to use it.There is nothing confusing. As I already mentioned,the beam is  good.
There is no info about the water resistance.I assume the lantern is not sealed,so it is recommended to keep it dry. This is maybe the only thing that could be improved.
I have nothing more to require from this product.
It worked as expected,without any flaws during the test period.

You can check the price on the official Aootek Amazon store-
http://www.amazon.com/Aootek%C2%AE-Intelligent-Rechargeable-Portable-Emergency/dp/B017ILZWVA/ref=sr_1_1?m=A1W53CYGIR4IFN&s=merchant-items&ie=UTF8&qid=1450681188&sr=1-1

 If you are interested in the lantern,Aootek is currently offering a discount code QAR79HP2


Specifications from manufacturer(direct copy/paste):
 -Sleep Assistance
Adopted with scientific time setting function,will turn off automatically 10 minutes later since set it on,perfect for baby and kids sleeping.

 -Emergency Backup & Night Baby Nurse
When you pick it up from the charge seat or your power goes off,then it will light up automatically till 10 minutes later. 

 -Adjustable brightness
Adjustable brightness by rotate the button as you need.

 -Sweet Atmosphere Everywhere
Fashion and high-end appearance with sweet yellow light makes perfect homey atmosphere,ideal for home when you with loved one or in your camping tent when you are on a trip as it's portable.

 -Eco-Friend
Low-Carbon,adopted with green energy saving LED,1 kWh for half a year.

 -Practical
Built-in recyclable lithium battery with capacity of 1600MA,can run 3-12 hours with full charge.

 -Specifications
Material:ABS 
Light source:LED 
Power:0.9W 
Wight:438g 
Item Color:Apple White 
Light Color:warm yellow 
Input Voltage:110-220V 
Battery capacity:1600MA 
Item Dimension:108x108x162mm 

 -NOTICE
Usually will be full charged within 12 hours,under preserved condition need to charge it once 1-3 month,if disconnect with power the first 1-3 hour will runs on bright condition,3-12 hour will dim gradually,run it on Charge seat for long term which have no affection for battery lifespan.

 -What's included
1xLED portable lantern 
1xCharge seat 

Saturday, December 19, 2015

Aootek- Foldable,Portable Desk Lamp with Alarm Clock-Review

Hello
In this review,I am taking a step aside from the regular shape flashlights,reviewing a little different product.
Aootek-a multi-purpose desk lamp with calendar and alarm-clock function.
Variable shape and adjustable direction of the light.Can be used as a desk lamp,reading light,camping light,night light,wall mounted,etc.
The light comes from SMD LEDs.
The power source is built-in rechargeable Li-Ion battery.

The top and bottom parts are made of metal. The rest of the construction is made of  plastic,which seems quite high quality.
There are 4 silicone pads on the bottom with anti-slip purpose. The two channels in the metal plate are used for attaching an additional plastic holder with a double side sticky tape for mounting the clock/lamp to the wall,or other object.

Features (from manufacturer):
Eco-friendly LED light with adjustable brightness from touch sensor,well eyes protection.
Modern and fashion appearance,easy to operate.
It's fold-able,so convenient to carry around.
Built-in 1000mAH lithium battery,run 3-10 hours.
Multi-function with calendar/alarm/digital thermometer.
Specification:
Power consumption:1.8W
Input voltage:USB 5V/500mA
Battery capacity:1000mAH
Power for calendar:CR2025/3V
LED quantity:18pcs
Brightness mode:adjustable with touch sensor
Color temperature:5500K
Material:ABS+Alloy
Dimension:182x42x30
Item wight:265g
Package Included:
1xLED desk lamp
1xUSB cable
1xWall adhesive seat
1xManual

The lamp comes with a miniUSB cable in the box.
To charge it,just plug the one end of the cable to the lamp's miniUSB port and the other end to a 5V computer USB port,or 5V wall adapter with USB port.

The lamp is fold-able thanks to two hinges.They allows unfolding up to 180 degree angle.
The whole construction seems quite sturdy.I had no any problem folding/unfolding the lamp in my usage,so far.


The built-in Li-Ion battery can be charged via miniUSB port. The charging current does not exceed 500mA,which means you can charge the desk lamp from any standard 5V USB source-computer port,mobile phone,or camera charger,power bank,etc.
The small hole near the miniUSB port is a charging indicator-red light when charging,no light when charged.
I did not track how long time takes full charging,but for a 1000mAh battery,it should be about 2 hours.
There is just one switch for operating the light.
Here you can see the switch zone. Only the zone inside the circle is touch sensitive.
The panel is highly sensitive and does not require any special way of touching-with the finger tips,etc.
You can activate the light easily,even with the outer part of the hand.
1,5cm diameter of the circle. You may need to remember its approximate position to be able to activate the light quickly. It is absolutely flat with the surrounding surface,which means it is impossible to find it by touching and is also not visible if the lamp is placed higher and you look at it from any of the sides.
You have access to the switch only after unfolding the part with it. Otherwise,it is covered by the middle part.

This switch controls only the light function.
The Clock is a separate element and is controlled by its own buttons.
This brings a little inconvenience,just because you can't stop the alarm-clock by touching the sensor switch and have to find the right switch on the back of the display.
This is usually not very convenient,at least for me.


This is the LCD screen of the clock.
32mm wide, 92mm high.
18mm high of the clock digits.
Indication for time,date(month,date,day) and temperature.
There are also indications for alarm function and snooze.

The display has no any other plastic panels on its back and as you can see on the pictures,it is transparent.
This is a really cool looking,stylish clock/desk lamp.

The clock works with its own battery. It is type CR2025/3V.
There are four buttons for operating the clock/calendar.
They are on the back of the clock.Relatively small in size and do not protrude above the panel.
It takes some patience to find the needed button and press it. The buttons are made flat,mostly because the lamp is fold-able and they should not be pressed accidentally. 
You can choose the snooze period,one of eight melodies and time for the alarm,of course.
You can see also the circular cap of the battery compartment,just below the buttons.

18 SMD LEDs.

SMD LEDs with dimension 3mm x 3.5mm
Mounted on a large area,on a good distance from each other,resulting in wide floody beam,good for reading and close work.
According to the specifications,the LEDs are in the neutral white specter,but in my sample they are cool white with some tint. There is slight bluish tint,but it should not be a problem in normal use and without looking for it.
The max output is probably about 100 lumens,should be sufficient for most uses for which the lamp could be used for. Works quite well even for illuminating a big room.

The brightness level can be adjusted (touch and hold the switch).
The output is automatically,gradually decreasing from max to minimum level. If you touch and hold again the switch,the output will smoothly increase to its maximum level.
The different output is achieved by using PWM of low frequency.
The pwm is easily noticeable,but me personally,does not distract too much,in normal use.

The plastic window has slight diffusing texture for better mixing the beam.
The only disadvantage could be the presence of multiple shadows,because of the multiple light sources.
This may annoy you at some point,or not at all.


The small opening below the brand name is for the clock buzzer.

Closer look at the details.

Build quality is quite high.Quality plastic construction and panels.
The lamp is very well assembled,without any visible defects.
A great care to the packaging.All of the sides and the display had a protective nylon stickers-to keep the device scratch free.
The clock seems accurate,judging by the period of the test.
A really wel made desk lamp.Fully usable as a desk lamp and clock/calendar/alarm.
The light is quite good. Adjusting the brightness is a great feature. Nice modern addition with the touch sensitive switch.
What I wish to improve-I would add an additional touch switch on the front,below the clock,for turning On the light. I would like to have an easier way of stopping the alarm,with additional touch sensitive switch,or big conventional switch.
I am pleased with the brightness and the alarm sound level.
Definitely a good gadget for personal use,or for gift.

Aootek desk lamp was provided by Aootek for test and review.
Link to the official Aootek store on Amazon-
 http://www.amazon.com/Aootek%C2%AE-Foldable-Rechargeable-Calendar-Temperature/dp/B017IRNMX4/ref=sr_1_4?m=A1W53CYGIR4IFN&s=merchant-items&ie=UTF8&qid=1450681188&sr=1-4
Aootek is currently offering a discount code for the Desk lamp. Use code 8PWP8GIF