Cheap, Great for soldering your own LEDs to. The pads solder easy.
-ve and +ve are clearly marked.
Same size and shape as used on many LEDs. Boards are punched out so some have a slight bend. Some of the printing is a little off. Not big problems though. I use to solder the LEDs to the stars by tinning the boards, placing the LEDs in place and then ... Read more
The price is good, like $0.08 each. Great heat sink. Before this board, the LED is hot to touch, after mounting on this board, just warm. I tested it. The temperature was below 40 degree C. Of course that was with moderate current and not pushing to the limit of the LED. Have 2 positive and 2 negative terminals and 2 pad for the LED to solder on Some ... Read more
excellent ratio price / quality / quantity, have an excellent surface for welding, it is not necessary to use any type of soldering flux to improve. its size is perfect, in my case I'm using them for 3 watt leds. the size of the heat transfer pad of the LED is ideal the Solder Mask comes with a little offset, but not annoying at all at the time of their ... Read more
- They are a must have for any DIY high power led project. They are compatible with 1 and 3 W led shape. - The soldering pads are easy to use and do not need special soldering skills.
- The terminals are market and easy to know which is which.
- I'm using them in a custom built aquarium lamp system. - none i could found - Be sure the led has a layer ... Read more
Really affordable price really solder sticks where it's sopposed without messing around with a lot of fluss Quality is generally no problem with these hexangular pcb's The silk screen has been of with a few of the pcb's not centered correctly but they are still usable I would definitely recommend people to buy these and also to use some heat compound ... Read more
Good qualyti easy to solder it! All connection good insulated.
No problem with any peace.
The surface is clean good for soldering, the labells good and correct and easy to recognise.
The surface good geometri have, beter than other products in my practis. Good the connection with two different led bulbs type. The back is clean godd for adhesives, easy ... Read more
Even with my mediocre soldering skills and aging eyes I am able to successfully solder emitters to these boards. 3 pads are marked minus, 3 pads marked plus. A dab of thermal paste/grease on the underside of your LED is recommended. If you're sloppy or not too careful I can see it would be easy to make contact with the aluminum base material. In some ... Read more
I bought these to mount 1W Cool White LEDs (SKU 65220) for a project where I am making solar powered LED lights for my home. I plan to mount these PCBs on a Aluminium heat sink (or a channel if that works out well). - The cost is really low and for me should be enough for making lights for the entire house.
- I was pleasantly surprised to find that ... Read more
small but enough mass for heattransportation
good mounting possibility
flexible soldering positions
suitable for many types of led
big soldering pads
enough screw holes some manufacturing deviations at solder pads, so the screw can get in contact with energized parts when using metallic screw or the cable ends can get in contact with the bottom part ... Read more
Solid aluminium/aluminum; Looks like heavy 1oz copper pads, good soldermask, polarity marked clearly, mostly good job on the pre-tinned pads. Electrically isolated center die pad. Milling/size is good on hex. Some of the tinning on the pads has chipped off/never was there -- chemically treated in large batches probably. If you need leds soldered to ... Read more
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