CHANZONLED Driver 450mA (Constant Current Output) 12V-20V (Input 100-240V AC-DC) (4-6) x2W Power Supply 450 mA Lighting Transformer Drivers for High Power COB Light Lamp Bulb (Plastic Case)

I purchased this item on April 6, 2017 and installed it in a Outdoor LED Security Light on 1-26-2018 that was Purchased at Lowes around a year earlier when it's Power Supply failed. This New Power Supply has been working fine until this morning 1-10-2019. For the past week the Outdoor Security light just flickers on/off all night long. Maybe I am charitable giving it 2 stars. I bought another one of these on January 8, 2018 and installed it in the same light listed above today 1-16-2019 so we will see how long it holds up. These LED drivers just don't hold up for very long. There seem to be a design problem that results in them turning off/on. LEDs lights may be efficient but not if the electronics give out...I asked supplier to send send me another power supply under Warrantee to fix this light on 1-10-2019. No Replacement Power Supply has been sent.I have discovered the Design problem with Elytrolytic Capacitor C6 10 uF 50V. I measured this part in my LED Driver Assembly. It measured 5uF instead of 10uF. I replaced this part with a 22uF@50V and the Flashing On/Off problem was fixed. I suspect this part has too much AC ripple on it which reduces it's capacitance and shortens it's life.This part value and it's derating needs to be looked at by the design Engineers.

I have 3 Costco L.E.D. outdoor lanterns. I call them porch lights. A few months ago, one failed. Costco still sold it, so I traded for a new fixture.A few days ago, another failed. The light was dim and constantly blinking on and off. Costco no longer sells that model. I could buy a new one, but it wouldn't match the others.I Googled the issue and found that the "driver" in these units can fail. There were YouTube videos showing how to replace the "driver". Inside the lamp head are a photocell, a driver and the cluster of L.E.D. lamps. The driver seems to work as a power supply for the lights. It has two wires for the power input and two wires to the lights.The O.E.M. replacement driver was hard to find online. It seems to sell for $37.50 on up, plus shipping.One of the videos showed this unit. I decided to take a chance. It arrived today. I installed it and it works! This driver sits loosely inside the lamp head, but that's ok. I am completely satisfied.The photo is similar to my lanterns.

I was a little concerned about the high voltage (43.5V) open circuit as some others have mentioned so I hooked it up to a voltage/current regulator so that it wouldn't blow out my LED. I set the parameters to be a little higher than what the LED is supposed to handle (36V and 1.2A in the 1st image) ...the LED driver is supposed to deliver constant 900mA so I wanted to see if it would max out at 900mA. Sure enough, the current was hovering around 900mA and the voltage dropped to just under 34V which is about the max voltage the LED is rated at. If you have used a variable power supply you know that if you set a fixed current then the voltage would drop once it max out on the current (V=IR).I decided to play around with the different voltage by lowering it to something like 32V ...thinking it would dim the LED but it started blinking. Same thing when I lowered the amp below the 900mA ...LED started blinking. The lower the setting the faster it blinked. I don't think this has anything to do with the LED because when I hooked it up to another variable power supply and lowered the voltage the same LED would slowly dim all the way down to around 22V before going out completely without any blinking. My guess is that if your LED/load does not draw the current that the driver can deliver (900mA in my case) that the driver does something to pulse the output. Usually you can use higher amperage power supply and the device would draw whatever it needed but in this case, buying something with extra mA is not a good thing (like using a 1500mAh for a LED that only draw 900mAh at 34V).In summary, determine how much current your LED needs and buy the matching unit otherwise you might run into issues.

I bought 3 full spectrum 225 LED grow light panels from Banggood for what I thought was a great deal. It turns out the panels were fine, you can find them here on Amazon. The supplied drivers were junk though. I'm a natural skeptic so I checked over my bargain lights and noticed the supplied drivers were snap together, not a single screw. So I plug them in and get my non contact thermometer. Within 2 minutes they exceeded 180*F. I place the drivers in ceramic pots, as to avoid a fire, and ran them. Inside of 2 weeks all had failed. These Chanzon drivers are great! I matched the specs to my panel and these have been flawless. I took them apart and the construction is very robust. Thick circuit board, large high temp capacitors, very pleased. I haven't measured temps since they barely feel warm to the touch. 3 drivers running 16 hours a day for a few months and flawless performance. As a side note people can't follow instructions. You can only measure operating voltage of a LOADED circuit with a constant current driver.

The LED Driver should have worked but it flashed on, off, on and kept on flashing. Maybe it was some other problem, but in the end it didn't solve my problem. I give it three stars. I wasn't going to review it, but they asked for a review and this is as good as I could do under the circumstances.

This is closet match that I could find for the LED recessed light from Costco. It's not exactly the as small as the original unit but it fits within the enclosure. For the price, it works just like new and just minor mod to secure it since it doesn't fit the holes. All electronic specs matches and it works great. I'm glad to have found this unit and would recommend it. Also, they offer 1 year full replacement (this is a bonus!)

I got this to replace a commercial high bay power supply that went bad. This new unit works great. I had to drill new holes since the mounting holes didn't line up with the old one.Now the question is how long will this last. I've only had this for a few weeks and I don't use this light too much so I may need to revisit this review in a year or two. LED PS are notorious for pooping out after a year or two.

Arrived quickly. Good value. The light up quickly. Used in the kitchen, so used all the time. I have used this make of driver for about 6 months and so far they have lasted and performed.

Fast delivery does what its supposed to do

👍👍😉

Nothing wrong with this thought it would dim my fault product fine

Excellent product, excellent communication with supplier.