- Low weight aluminum housing and steel
- Ultra Bright - White
Good Value But False Specs 02/17/2014
This review is from: 27 Watt 12V 60 Degrees Square LED Flood Light, White
Durable weatherproof housing, thick wire, good amount of light for the money, wide voltage input range of 10V to 30V & current regulated drive circuit.
Not a polycarbonate lens so hopefully it won't yellow over time, though more subject to stress fracture than if it were polycarbonate.
Not Cree LEDs, they are Epistar brand with lower efficiency. Lumen rating is false as is wattage rating. They are closer to 1500 lumens and 23W.
Polarity protection - might seem nice to someone who doesn't know how to wire a light but it is a voltage loss to implement it, resulting in lower efficiency.
Very highly diffused broad beam. They do call it a flood but it floods a little too much even for very close up distances.
The mount for it is not very vibration resistant. Even tightening it a lot, I would still recommend coating not only the screw threads where the nuts go with threadlock compound but also putting some between the mount plate and where it contacts the body of the light.
I can't complain about the product performance for the price but it never should have been listed as "Cree type LED chipsets" because there's nothing in particular that makes them more like Cree's LEDs than any other brand.
The Epistar LEDs are good for about 67 lumens per watt per Epistar's datasheet and a measure of input current means the input to the light is 23W, then subtract regulation losses.
These are arranged as a buck PWM driver circuit which seems to be driving 3 parallel series of 3 LEDs in each series. If one LED or series fails you are probably going to loose all 3 in that series.
It was misleading to put 9 pieces of LEDs that "could" work up to 3W power level but don't in this product, then claim something the product does not live up to. I cannot fault this seller in particular as all of them seem ignorant of the situation that wattage is a scientific quantity not what some internal component could do in a different situation. The way they did it they could have used 10W LEDs, claimed it was then 90W, but using the same driver circuit it would have been no brighter at all. This is not all bad, the enclosure limits the heatsinking amount and it would be larger, heavier, and more costly with diminishing return in lumens to increase wattage much more.
Despite the cons the bottom line is that being a finished ready to install product suitable for outdoor use, it is a good value. I see it as the best option for the price, not the best option at twice the price which is what some alternative lighting pitched for the same uses sell for.
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