Involvement:Expert (understands the inner workings) - Ownership:1 week to 1 month
Bought a batch of 10 units in a pack and used them to replace some of the LEDs in the 10mm keychain flashlights which either had poor focusing or discoloured yellowish or bluish beam spots.
These LEDs can withstand a direct voltage drive of 6V without any current limiting and projects a beam spot at least 10 feet away quite clearly in a dark alley.
The quality of these LEDs are slightly poor as the beam spots are not focused correctly and the beam spot is sometimes either yellowish white or bluish white. Intensity also differs quite a fair bit between the 10 units.
None that I can think of.
I prefer the 22000mcd 5mm LEDs as they are much b righter and give an even beam spot 10 feet away but at a lower intensity, however, for reading usage these 10mm LEDs are definitely not good.
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