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  • Overall Rating: 5
  • Price: 5
  • Quality: 5
  • Ease Of Use: 5
  • Usefulness: 5
Bright light cheap bulb with controller and optics – MR16 3W 210-240LM High Power White 3-LED Bulb (12V) Reviews

posted by GammaButa on 01/17/2013 Certified Owner

Involvement:Expert (understands the inner workings) - Ownership:more than 1 month

- very bright light - can work from 12V adapter, car battery, other battery packs near 12Volts - tested and worked fine from solar solar panel with 18Volt starting voltage - only need 300-320mA of input current, leds are connected serially - for DIY porjects all the components can be also usefull (driver circuit, LEDs, metal heatsink housing, plastic optics) - easy to modify, to further improve efficiency
No reals cons at all, a little warm while working, the first one I received did not have thermal grease inside under the LED panel, but the second I've got had. Non of them had problems yet.
I disassembled it and also measured voltage/current plus how to improve efficiency, pictures will be attached about internals and how to mod.
It is one of the best 12Volt bulbs here if not the best.


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