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Bruni Gabriele
Bewertet in Italien am 4. Dezember 2024
Avevo la corona IR di una telecamera Hikvision con una decina di led bruciati che ho rimpiazzato con questi. La corona è tornata a funzionare regolarmente, spero duri a lungo.Al buio, accesi, appaiono leggermente più rossastri degli originali segno che hanno un'emissione inferiore a 850nm, ma questo ha poca rilevanza nel mio caso.
J. Baker
Bewertet in den USA am30. Oktober 2023
Yeah....when the IR LEDs die a slow death Hikvision would just LOVE for you to buy new cameras. The cameras you have are probably perfectly fine except for the night IR capability where the image is just black. Not very "secure".....The parts required are these 3mm 850nm for LEDs. About a 2 hour job per unit. Tools -Solder suckerCopper De-solder wickFlush cut nippers to straighten bent leads after desolder and to trim leads of LEDs after installSoldering station with adjustable temp and small half chisel face tip.LED Head Magnifier, Rechargeable Hands Free Headband Magnifying Glass (not required but sure is helpful for older eyes)Small Phillips jewelers screwdriver and the Torks bit to open the unit. All of mine are dome cameras.I got these because it's enough for three cameras with 10 left over for the next batch.These were $10 a pack. If you wanted to wait awhile you can get these much cheaper from Alibaba or Bang Good.The primary difference in the replacement units above and what was removed from the board was the placement of the flat spot indicating polarity. The removed units had the flat spot on the side of the negative, short leg of the LED (standard) while the replacements had the flat spot on the face of the LED with the negative, short leg to the right (nonstandard). The PCB has an orientation symbol silk screened on....to place the replacement in the right orientation turn the board so the image has the flat spot on the bottom as you look at it then place the replacement short lead to your right and insert. Easy peazy. In any event you should check the LEDs you use to make sure they didn't place the flat spot in some screwy orientation. Negative lead should always be shorter, tho.It is "fine work" so if you have no experience soldering or knowledge of electronics this may not be the project for you.
Dave
Bewertet in den USA am30. Dezember 2021
Used to replace IR emission on IP camera. Bit narrower view angle but fine for my application.
RedAnt
Bewertet in den USA am30. Juni 2020
Used to illuminate a 3d printer camera on an OctoPi. With a 10 Ohm resistor you can run two in series off 3.3 volts, or three off of 5 volts. Probably helps to spread them out a bit to reduce any odd lighting pattern cast. They shine camera level light far enough to illuminate a 310mm printer bed.
John Griswold
Bewertet in den USA am13. April 2017
Exactly as listed - while the eye only sees the dimmest little red dot at the center of the LED, look at the output on a camera, such as your phone, and you can see the emission is surprisingly bright for such a small LED - many cameras see well into the infrared range, so these sorts of LEDs make great night vision illumination for your back up camera, trail cam or security cameras.
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