Here is a update of the "other" el cheapo LED light I bought from eBay. I was pleasently surprised by its performance. Read on...
I bought two units, a silver (chrome?) and a blue one on eBay and the LED light came in plastic-cardboard packaging that looked like normal Walmart items hanging on a peg-hook. Once removed from the packaging, the item felt even less substantial. It was made of all plastic parts with a metal lining on the body. The lens was made of a lightweight plastic and convexed outward, protruding from the body (bad). The unit turned on and off by pulling on the head. (good) the light does not roll around because it is weighed on one side with a magnet (good, neat feature). The magnet is strong enough to hold the LED light on its side (really good) and ensure a good contact inside a cigeretted lighter socket (excellent)
The unit glows green to indicate that it is chargine, but the green LED turns off after a few seconds (not good).
The back of the packaging has a bunch of warning and messages pretaining to its use (not water proof, don't open, etc) with miss-spelled words typical of a low-priced foreign good. The package indicated the "Car Searchligh" product was made in Taiwan. There were no specifications on the LED, battery type. The seller included some mediocre instruction that indicated the unit should be charged 1/5 hours before first use. He also indicated in his eBay listings that the battery was of the type "Nickel Hydrogen?". I elected to charge both units overnight just be sure.
The output of the light is about 60-70% of the light from the Lenser LED listed above.
Here is the performance test.
At the 1/5 hour mark, I stop the comparison with the Lenser LED due to the Lenser having almost no light (5%).
Here is the light output of the test LED compared to a controll (fully charged) LED light.
16 minutes: 100%
38 minutes: 95% and started to flicker. Turning the unit off and back of solved the problem
60 minutes: 90%
89 minutes: 85%
103 minutes: 80%
119 minutes: 50%
124 minutes: 30%
138 minutes: 20%
247 minutes: 5%
Holy smokes, This unit has two hour of really usable light and still glowing after 4 hours!
It cost $10 and I think it's a real winner if you can get over the cheap look/feel of the light.