Top positive review
155 people found this helpful
Good product, some quality issues but a great value.
on October 9, 2013
Not as bright as others I had/ have, but a this price (currently under $10 for 10 bulbs)you can't beat this value. The best ones I have are from LEDMOD_DOT_COM and were $5 for a pair. The LEDS I bought here from JTECHnow are only maybe 10% dimmer than the super bright ones I own. Most buyers will not notice this and if you use them in pairs, should not have any issues. Some quailty issues were noticed, but they did not keep the LED bulbs from working. I will be buying more of these from Amazon and this seller over the other brighter ones I have.
WHAT I GOT: (See my image for reference)
The bulbs come in an easy to open display packaging. Mine were neatly organized and had a small foam layer behind them that kept them from rattling. The entire package was then placed in an padded envelope. Not the best packaging for shipping but it arrived safely.
QUALITY INSPECTION: (See my image for reference)
The LED's looked very nice. All were clean and free of residue from solder or other films from the manufacturing process. I did notice on two of the LED assembly's that they were made at an odd angle. This might affect use if the tolerance is tight for your application, but not for me. (See my image for reference.)I could not notice any cold solder joints and all solder looked shiny and clean with good contact. On a scale of 1 to 10, I give the solder job on these a solid 8. I tried a light twist test to see if the circuits would easily break off the plastic base, but they seemed well enough secure. Your not going to have any twisting forces when inserting or removing these bulbs.
TESTING: (See my image for reference)
My testing was semi scientific as I used a DC power supply with 3VDC, 4.4VDC,6VDC, 7.5VDC,9VDC and 12VDC. Each were tested at 7.5VDC, 9VDC and 12VDC. (I could not get them to light on any voltage lower then the 7.5VDC setting of my supply.) I did this to verify that each worked, and to verify if they are polarity sensitive (they ARE) and to note which side is the positive and negative for later use. At 7.5VDC the LEDS lit up. You could see each individual segment clearly.(each LED assembly has 3 light emmitting segments) At 9VDC you can not look at them without hurting your eyes. The LEDS were bright and full. 12VDC was full brightness and blinding after just glancing at them quickly. Within seconds I felt like I was looking into a camera flash. Unfortunately this was hard to photograph, because the varying output would affect my camera's focus and apeture. The higher the voltage, the darker the background seemed. I did manage to get a few decent pictures for reference. All the bulbs were left running for about 5 minutes before removing from my test jig. All bulbs appeared to have the same color (PURE WHITE) and all were the same intensity, to my naked (and somewhat blinded) eye.
PRACTICAL USE: (See my image for reference)
I bought these to use in my restored 1995 Celica. I had replaced the head lights with JDM ones from Japan. The stock 194 bulbs would illuminate the "City Lights" (small white marker lights within the headlights themselves) with a dim, yellow hue. The LED's fit right in the OEM socket, as snug as the original bulbs did and were a nice BRIGHT WHITE. I regret I did not take a picture with one 194 bulb and one LED bulb for a 'side by side' comparison, but I did get a decent shot of the white light within' the headlight.
*Very bright white color
*Uniform color & brightness from one LED to the next
*EXCEPTOINAL value at less than $1 each. (including shipping!)
*High quality construction & materials (rival or equals the more expesive LED's I have)
*OEM fit into bulb socket (at least on Toyota Celica's!)
*Easy open package that cam be reused to store unused LED bulbs
*Some assembly issues/ quality control
*Packaging material a bit weak in my opinion. (Shipped in a padded envelope)
*Can't find out what warranty is (90 day? 6 months? 1 year?)
CLOSING: I hope to update this review wth a longevity report and if I have any issues. As of right now (10-9-13) I and extremely satisfied with this purchace and the seller "JTECHnow", but I reserve the right to change that if they turn out to be duds!