Pros: An excellent product and a best buy for the number of emitters per dollar. Bright white.Easy for beginners to use as is, and cutable like the ribbon strips, at any three LED junction. There are good solder pads at each cut point if you wish to use shorter sections.
Cons: No cons since those arriving now are different to the one displayed in the customer picture and early revues. The soldering is good quality and the board design better.
Other Thoughts: 75 LEDs protected every three LEDs with a 180 ohm resistor. This will make them bullet proof at charging voltages but tends to have them underdriven at 12 volts. There are still good and bright at that lower voltage however.I measured 390 mA at 12 volts and another customer measured 590 mA at 14.1 volts.Nominal rating at 12 volts would be 500 mA and 6 watts.
Bottomline: A good bargain choice for those considering SKU 5256 or even SKU 5312Application details can be seen here:http://longlucas.bravehost.com/
Pros: Excellent product where the fine nozzles allow for using just the tiny amount you need..I don't bother with five minute epoxy anymore, I much prefer this stuff.Sets solid in about five minutes so you can even hold bits together for that long and not bother with clamps.
Cons: None at all.
Other Thoughts: The reason I have to keep buying more is that I keep giving away samples to friends. Bit like those great little DX keychain flashlights and I must have given away a few hundred of those.
Bottomline: I recommend this glue for attaching many of the best buys in DX LED lamps. It is a better solution than double sided adhesive tape.
Pros: An optical mouse with the usual features including the clickable scroll wheel.Clicking buttons have a crisp feel and the mouse works well.
Cons: Some users may find this shape strange. I prefer the traditional egg shape for a full size mouse. The cord with the USB plug is rather thin and more likely to tangle that the thicker ones found on another mouse.
Other Thoughts: I put this one away as a spare for when my preferred mouse fails. Sometimes the micro switches seem to have a short life, but I have tried too few samples to know if that is a general problem. The most heavily used left button always seems to fail though.
Bottomline: A reasonable buy if the shape fits your preference.
Pros: A well designed enclosure with good protection for the hard drive with insulating panels for electrical isolation and shock absorption.An attractive case with a good carry sleeve to protect from scratches.
Cons: Assembly is fiddly with 8 tiny screws to put in place. You need to pay attention to the assembly steps or you will get the USB cutouts misaligned. I did. Not as esy to change drives as the slip in type cases.
Other Thoughts:
Bottomline: I am well satisfied with this purchase. It works well.
Pros: Just as the pictures show. Light and compact and easy to use with the adhesive tape.I use mine to plug in three GPS units at once and it handles that without trouble. The plug part is fuse protected against overload.
Cons: A white LED is used to show the unit has power. It is a bit too bright for my preference. A subdued red LED would be preferred.
Other Thoughts: Some buyers might prefer a different colour. I think black would be popular for many car interiors.
Bottomline: At this price, it is a good buy.Get some.
Pros: A good GPS unit with all the capability you would wish. Very sensitive to receiving satellite signals as are other units with the same Sirf III front ends. Well designed and effective windscreen mount.
Cons: I prefer these small screen GPS units and find the display completely adequate. Novice users may need a little help if the included map sets are not for their region. Read the forum letters below for assistance here.
Other Thoughts: All the navigation programs I have tried on this unit work just fine. They run from the sd card. You can program your own sd card to run what you prefer.
Bottomline: A good buy at this price. Highly recommended. Decent battery life, but I run mine always plugged in with the cigarette lighter plug. Display is bright.
Pros: If you have a look here, you will see some excellent pictures of an application of this product along with some other best buys from DX.http://www.dreampod.net/boroma/leds.html
Cons: There are none.I continue to recommend these as a best buy, well protected from those charging voltages by using 150 ohm resistors for every three emitters.
Other Thoughts: My own web page features these LED boards right at the top, as a best buy.http://longlucas.bravehost.com/Have a look about for other best buys from DX
Bottomline: You cannot go wrong here. Let us hope that DX keeps up the quality on these as I am sending quite a few buyers after them.
Pros: Think of this board as 36 LEDs as each is a triple emitter, so at eight bucks it is a very good buy.Double sided circular circuit board with 12 150 ohm resistors.This suggests that protection from usual charging voltages will be adequate.
Cons: Get rid of the sticky backing and let the air flow
Other Thoughts: Measurements at my charging voltage of 13.25 volts is a current draw of 240 mA.That is spot on at 20 mA per emitter.Power = 13.25 volts x 0.24 amps = 3.18 watts.That is quite a bit more than the specs shown by DX, even at 12 volts.
Bottomline: Just the thing for that reading lamp
Pros: Very good even for area lamps. Follow cautions above in description
Cons: bad design of resistor choice for vehicle use.
Bottomline: Use the next higher resistor value if the 5 ohms in my recommendation above is not available.LED brightness will only be very slightly affected.
Pros: Follow the instructions above for vehicle use
Cons: Bad design choice of resistor value for cars.
Bottomline: Use the next higher resistor value if the 17 ohms in my recommendation above is not available.LED brightness will only be very slightly affected.
Pros: Good lamp. Just follow the caution for vehicle use.
Cons: needs added resistor for intended use.
Bottomline: Use the next higher resistor value if the 12 ohms in my recommendation above is not available.LED brightness will only be very slightly affected.
Pros: Does what intended.Good price.Good quality.
Cons: none
Other Thoughts: Product says a two pack. I got only one. Not worth the fuss to request another from DX.
Bottomline: Price is reasonable for just one. If you get two you are doing fine.
Pros: Works well with a little practice on speed of sealing motion
Cons: None at this price
Bottomline: Get one.Another case of you cannot beat the price.
Pros: Good item with the caution mentioned above
Cons: Bad choice or resistor values on PCB for vehicle use.
Bottomline: Just use the next higher value resistance if the value I recommend above is not available. You will be unlikely to notice the drop in brightness.
Pros: Good item provided you follow the instructions above for vehicle use.
Cons: Will fail at charging voltages without protection
Bottomline: A good buy. If you cannot make up a 7.5 ohm resistor I advise, just choose the next higher value. The loss of brightness will be very little
Pros: I have not purchased this item. It is similar to other LED boards in this style offered by DX and there could well be the same problem. With proper precaution in use it should be just as excellent a purchase.
Cons: The LEDs are liable to failure at the charging voltages produced in an automobile alternator.
Bottomline: The simple solution is to add a 7 or 8 ohm, 1 watt resistor in the red power wire. Do this and all should be fine
Pros: I have not purchased this item. I have seen it in the motorhome of the other reviewer JohnH. It is similar to other LED boards in this style offered by DX and there could well be the same problem. With proper precaution in use it should be just as excellent a purchase.
Bottomline: The simple solution is to add a 12 ohm, 1 watt resistor in the red power wire. Do this and all should be fine
Pros: I have not seen this item but have the other sizes in the same product.
Bottomline: The simple solution is to add a 15 to 20 ohm, 1 watt resistor in the red power wire. Do this and all should be fine
Pros: This item is still the little gem I discuss in my original review. There is a problem however. Buyers are reporting a high failure rate.
Bottomline: The simple solution is to add a 5 ohm, 1 watt resistor in the red power wire. Do this and all should be fine
Pros: : This item is still the little gem I discuss in my original review. There maybe a problem however.
Cons: Without cutting the strip open, measurement suggest that inadequate resistors may have been used in the strip costruction.
Other Thoughts: The LEDs might be liable to failure at the charging voltages produced in an automobile alternator.
Bottomline: The simple solution is to add a 5 ohm, 1 watt resistor in the red power wire. Do this and all should be fine.
Pros: This item is still the little gem I discuss in my original review. There is a problem however.
Bottomline: The simple solution is to add a 15 ohm, 1 watt resistor in the red power wire. Do this and all should be fine.
Pros: What a deal. They are loved by all. Make super gifts. Very bright double LED keychain flashlight.
Cons: Absolutely none
Bottomline: Add a few of these to each of your orders. Along with the other keychain LED flashlights they make excellent gifts.
Pros: Excellent name brand product with warranty at a good price.
Bottomline: You can always use more of these. Great for my music collection
Pros: Another of those bargains of the century. Great little LED flashlight and laser pointer.
Cons: Absolutely none.
Other Thoughts: Buy a fifty pack of spare button cells from DX for a few dollars and you will keep these going for ever. They make great gifts.
Bottomline: Buy these while they are still available. Great deal.
Pros: What a deal. Ten Luxeon style LED emitters at this price. I will buy more when available
Cons: For the expert to use only. Requires heat sinking and current control.
Other Thoughts: Great deal for experimenting.Ideal to make lamps for RV use.
Bottomline: Great price even if you mess a couple up experimenting.
Pros: This is a low price headset but functions well. Sound quality is quite good.
Cons: Headset wiring is thin and tangle prone
Bottomline: Buy this for occasional use or select one of the better ones from DX for serious use such as the excellent SKU 3763
Pros: These are good quality. Use them in your watch or mini remote control
Cons: Flimsy packaging will likely mix them about in transit.
Bottomline: Excellent price and good quality button cells. You may as well get 20 at the price you might pay elsewhere for one or two.
Pros: Just the thing to have for those little laser keychain pointers from DX.
Cons: Packaging is likely to have you sort them all when it arrives as they spill around.
Bottomline: All the ones I have used so for have been good. At the price you cannot go wrong.
Pros: An analog meter is sometimes better for judging the size of readings easily. This one works well. Has good capacity for DC amps also
Cons: This is a low cost item not the best choice for precision readings
Other Thoughts: I would have a good quality digital meter like the other DX choices as a main meter and this one to fit your shirt pocket.
Bottomline: For the price it cannot be beat.If you have only occasional use for a meter this one is a good choice to check continuity or battery voltages.
Pros: Excellent quality product well packaged for protection.
Other Thoughts: Good capacity choice for those MP3 players for enough songs for a week of listening
Bottomline: Excellent product. I will buy more at this price.
Pros: Great little fan and has a good air flow at 5 volts.
Bottomline: Great price, may as well buy a couple of spares at the same time. I will buy more.
Pros: Will connect to USB port or also to older laptops. Small size and neat retracting cord handy for transporting.
Cons: Small size may not suit large hands.
Other Thoughts: More reliable than changing batteries on the wireless ones.
Bottomline: A good deal on an optical mouse with a thumb wheel scroll function.
Pros: Works well and retractable cord makes things neat. Small size makes for easy carrying
Cons: Small size might be awkward for some with large hands.
Bottomline: Has thumb wheel. Good deal on an optical mouse for your laptop.
Pros: Delightful and useful little charger and power supply. Led light shows power on state. I use it to charge up MP3 players
Cons: None
Bottomline: Another bargain from DX. Saves having to mess with your laptop to charge accessories.
Pros: Excellent item for the price. A must have along with alligator clips for electrical testing without risking exposed metal to cause short circuits.
Cons: I had to go looking for wire fine enough to allow the cap to work after soldering to the T tab.
Bottomline: Cannot be beat at the price. Good firm spring action to keep clips in place.
Pros: Light weight and runs cool with good ventilation slots. Well designed DC voltage selection switch prevents accidental movement.
Cons: Does not have the plug to match my Dell laptop.
Other Thoughts: It seems that there is another listing on DX for the same item.
Bottomline: Just the thing to run your laptop in the car without bothering with an inverter and the laptop's power brick. Excellent price from DX.
Pros: Mine arrived after a delay and worked just as expected
Other Thoughts: Came with Kingston label so there might have been a substitution
Bottomline: good price again from DX
Pros: A good toy.Plenty of fun for all ages
Cons: This is a delicate item best used with some adult supervision
Bottomline: Good price and fun to assemble and use
Pros: Favourite for children at party time. Plenty of light and the batteries were lasting well
Other Thoughts: Buy some spare button cells from DX also at a good price.
Bottomline: Great toy at a good price.
Pros: Good solid little bath toy for the young set
Bottomline: good price on another quality DX item.
Pros: Fun for older children and you cannot beat the price
Cons: Delicate item needs care with handling
Bottomline: Why not! Another treat for the kids.
Pros: Works well and retractable cord keeps thing neat
Cons: It is very small and may tire some hands.
Bottomline: Cannot beat the price for an optical mouse.
Pros: Make up a pair for your meter. Much better than alligator clips for confined spaces. You will need to solder lead wires to the tab under the cap.
Bottomline: get some. great price at twenty six cents each.
Pros: High quality optics. The lens on the bi pod plastic base is useful alone as a quick magnifier. Assembled the magnification is excellent.
Other Thoughts: Available light limits the magnification of a hand microscope. This does very well.
Bottomline: If you like to get a good look at tiny things buy this. It will give you a good look at the emitters on a SMD LED.
Pros: I like adhesives. Gluing makes a better join than mechanical fasteners. Epoxy is a favourite. This would be a good alternative to the 5 minute epoxy for moderate strength joins.
Cons: None except some might not like the uncured smell.
Bottomline: A good price Worth a try to see how many substances will bond with it.
Pros: Handy to be able to hang on the wall. Useful features for an office setting.
Cons: Instructions for setting only in Chinese, but it is only the clock part needing setting and that is quite standard.
Other Thoughts: Get the indoor outdoor set as well for similar price. Another good product.
Bottomline: A good buy.
Pros: Safe freezer temperature colour coded at base as 20 degrees Celcius or colder
Cons: No Fahrenheit scale
Other Thoughts: Compact and rugged
Bottomline: How can it be beat for under two bucks?
Pros: Just as illustrated with patch cords. Compact size, easy to set up and use.
Cons: No cons at this price.
Other Thoughts: Might be better designed if all plugs and cords were on one side to hide easily.
Bottomline: Handy AV switcher at a decent price.
Pros: Accurate. I checked against other gauges. Handy red LED to see in dark. Well made.
Cons: Talking version must be another model, but this is little disadvantage
Other Thoughts: Solar charging is a nice touch.
Bottomline: A good deal Will buy more as gifts.
Pros: Another best buy from DX. Tiny size makes it easy to carry anywhere and the optics are crystal clear. A solid little performer.
Other Thoughts: Mine was precisely aligned at the marks for an upright image. Adequate field of view and good magnification.
Bottomline: You will like this product.
Pros: I like this clock. It is simpler to use in function than others with the same features. Thermometer is accurate.
Cons: Digits on LCD display smaller than others because of the grid required to rotate the panel. Have to rotate clock to turn light on.
Bottomline: Another good buy in a compact alarm clock with a good thermometer, timer and calendar
Pros: A good clear image in bright and dim light. Alignment of my sample and adjustment of right ocular exactly right
Cons: A little longer than prism models with similar optics and price on DX.
Bottomline: a good buy not a toy, but good quality optics.
Pros: Good price for copper braid. One and a half meters will last a good while.
Cons: Braid is a little stiff.
Bottomline: Just the thing to clean up PCB to replace components.
Pros: Good sound and has cord only from left headphone, a decided advantage. Good quality fabric covered cord.
Cons: Ear pads are comfortable but do not swivel front to back
Other Thoughts: Convenient volume control on cord and good adjustment for microphone.
Bottomline: A good sturdy product. Buy this one!
Pros: Good price in a compact attractive unit. Rechargeable so no need to replace batteries. Recharges from computer USB port.
Cons: I got a defective one, which DX replaced. Only had a red blinking light, played some tunes at double speed and then died. No indication of state of battery charge connected to computer, but this may be related to the missing green LED indicator.
Other Thoughts: Other buyers must have got a good one.
Bottomline: Would buy again.Use with one of the DC or AC USB chargers from DX to save connecting to the computer to recharge.
Pros: Small size and reasonable optics for the price
Cons: Mine came quite misaligned so that each binocular tube gave an image displaced vertically and horizontally from the other. Binocular tubes could be seen to not quite line up.
Other Thoughts: I disassembled the tubes but could not correct alignment. Then I removed one objective lens and repositioned it. Bit tricky to do but it improved matters considerably.
Bottomline: OK for the price.