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Magic Disappeared Ink Trick Toy for April Fool's Day (6-Pack)
Magic Disappeared Ink Trick Toy for April Fool's Day (6-Pack)

sheepish
Member

VERIFIED OWNER
  • JoinedMay 2013
  • Posts 430
  • Reviews 4
  • Kudos175
Overall   (1.2)
› Quality
› Value
2 of 2 people found the following review helpful
PROS
* Bright blue colour (for most of the bottles). * Changes to colourless after a while exposed to the air (takes a long time as a droplet, quite quick when soaked into paper and blown on while cleaning up the leaks).
CONS
* A good portion of the disappearing ink disappeared in shipping. * None of the lids were tightly screwed on. * Five of the 6 bottles leaked. Being an alkaline liquid it left a slimy feel on all the packaging and contents. It needed a lot of washing. * One of the bottles had no colour to it when it arrived. * Very poor quality bottles with seam lines on the screw threads. * The nozzles just sitting in the tops of the bottles - barely enough friction to keep them in place when upending a bottle. (I haven't tried squeezing a bottle hard.) * Nozzles have split.
The way disappearing ink works is an alkaline solution is made with a pH indicator added that changes from blue to colourless as the solution gets less alkaline, which it does as the water in the solution absorbs carbon dioxide from the air. When the solution has absorbed enough carbon dioxide the colour disappears. The "disappearing ink" that survived shipping does work properly. The supplied bottles (and ziplock bag) really aren't good enough to prevent leaks. The bottles just aren't quality bottles. The plastic is soft - not necessarily bad - and the manufacture is cheap so there are seam lines down the sides of the screw threads that help them leak by preventing a good seal. The lid and nozzle are made of a different sort of plastic to the bottle. There is a pin in the lid that should seal the tip of the nozzle but instead of sealing the poor quality plastic nozzles have split from the pressure of the pin. With better containers this would be a pretty good product, maybe 8/10 or so. As it is, the product is going to be hated by the postal services.
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Multimeter Test Leads / Probe Cables (Pair)
Multimeter Test Leads / Probe Cables (Pair)

sheepish
Member

VERIFIED OWNER
  • JoinedMay 2013
  • Posts 430
  • Reviews 4
  • Kudos175
Overall   (1.7)
› Quality
› Value
2 of 2 people found the following review helpful
PROS
Very inexpensive.
CONS
The plugs needed tweaking to get a secure fit. One of the leads broke after 5 months of very light usage.
These fitted very loosely in my multimeter (labelled as 10282) when they arrived, but by bending the prongs in each plug out a little they made a secure fit. The part of the plugs that inserts into the multimeter are shorter than the plugs on the leads they are replacing but that has not been a problem. The insulation on one of the cables has completely separated just where it comes out of the plug, leaving the lead connected by just the copper wire. That's quite disappointing considering how little use they've had. In that location the break will be very hard to fix. (For $1.51 fixing them, if possible, is faster than shipping a new set.) Maybe the insulation has crept along the wire. Yes, they're inexpensive but also low quality. They should work for a while but they're probably destined to break. Instead of buying an extra set as a spare, it might be better to just buy a better quality set. Cable length 59 cm. Total length 72 cm.
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22mm 4000mA 1-Mode LED Driver Circuit Board for Flashlight DIY
22mm 4000mA 1-Mode LED Driver Circuit Board for Flashlight DIY

sheepish
Member

VERIFIED OWNER
  • JoinedMay 2013
  • Posts 430
  • Reviews 4
  • Kudos175
Overall   (3.7)
› Quality
› Value
1 of 1 people found the following review helpful
PROS
* Small, high current output at reasonable price.
CONS
* Not 4 A output. * Output current is basically direct drive for two Li-ion cells.
Tested with Cree XHP70.2, Fasttech SKU.8894802 (with no doubt inadequate cooling). Driver is apparently direct drive below about 7.15-7.5 V (depending on heat?). With an input voltage of 6 V the output current is only 1.24 V. Peak output is about 3.6-3.7 A. (I saw 3.9 A just once momentarily at 7.7 V in). Once the driver starts regulating, the output drops to 3.35 A at 8 V, climbs to 3.45 V at 9 V, drops again to 3.30 A at 10 V, then settles down close to 3.25 V at 11 V up to 12.6 V (the highest voltage I tested, sorry). This makes it suitable for three Li-ion cells but not two. Efficiency was 72-75% while in regulation - rather lower than desired - and up to 92% direct drive.
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Four Sockets USB Car Cigarette Powered Charger Adapter with Switch
Four Sockets USB Car Cigarette Powered Charger Adapter with Switch

sheepish
Member

VERIFIED OWNER
  • JoinedMay 2013
  • Posts 430
  • Reviews 4
  • Kudos175
Overall   (3.7)
› Quality
› Value
2 of 3 people found the following review helpful
PROS
* The lighter socket plug has a fuse. * Indicator LEDs for each socket - a blue LED shows above the socket when it is turned on, or a red LED shows below the socket when it is turned off. * A 5cm x 3cm double sided sticky foam pad is included.
CONS
* Only comes with a 5A fuse. * The LEDs are not all the same brightness as each other and seem to point in different directions. The red ones are generally dimmer than the blue ones. * Black plastic shell has a few random dimples.
This is not a top quality product, but it does the job it's intended for, and throws in a bit of decorative LED bling doing so. It's a pity that the LEDs couldn't be installed better, so they provide a more even effect. What looks like an LED window on the top of the unit doesn't light up at all, although it is lined up with the back of the board holding the positive terminals for the power sockets. The attached cable is about 58cm long and is marked 20AWG (=0.5mm^2 conductors), which should be OK for the included 5A fuse. (I don't see why it couldn't cope with a 10A fuse, though.) The USB socket did what was asked of it (charging a cellphone) and the case around the voltage converter electronics gets slightly warm. I haven't measured the socket's output voltage. The packaging claims "offer you unexpected driving experiences". I really don't want unexpected driving experiences. The last one of those I had wrote off my car.
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