Recent content by jesterhead

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  1. J

    Sold/Expired ******** H22A Heatsinks ********

    Sorry, address sent via mail :)
  2. J

    Sold/Expired ******** H22A Heatsinks ********

    3 x P7 Flat Top Bare Aluminum "D" size: 28 $ Registered mail: 2 $ From CPF: Jesterhead Total of 30 $ sent. :paypal: Thank you for this great offer!
  3. J

    50W LED floodlight selfmade

    I'm sorry, I completely forgot this thread. The constant current control is simple, measure current through shunt resistor, and if it is to high (current raises since the led gets warm), I lower the output via PWM. Maybe I can make some video material in the next days. The complete lamp weighs 3 kg.
  4. J

    50W LED floodlight selfmade

    This is the lens+reflector http://www.ebay.de/itm/78mm-Lens-82mm-Reflector-Base-Housing-FOR-20W-30W-50W-80W-100W-High-Power-LED-/130772386694?pt=AU_B_I_Electrical_Test_Equipment&hash=item1e72a44386 Without the lens the LED beam angle is even wider than in the pictures with lens. It is maybe a...
  5. J

    50W LED floodlight selfmade

    It would be really cool to change the lens movable, so it would be a zoomable flood-to-throw light, but I think that's too complicated for me, got no heavier tools like an angle grinder, turning machine or so. Just what is possible in the living room/my desk ;) Here 4 more shots: again...
  6. J

    50W LED floodlight selfmade

    Just made some beamshots (all same exposure!): One shot in darkness for reference (the light you see here was really there) This is a Mag3D with 5xCree Q5 @ ~16,5W (including driver): And this is the 50W floodlight :D:
  7. J

    50W LED floodlight selfmade

    Hello everyone, I'd like to share my newest and finished 50W LED project with you: Details: - cheap 50W emitter (cold white, 32V@1,5A, ~4000 lumen seller/manufacturer rating) reflector and lens from ebay. Beamangle about 90° - powered by 8S3P 25.6V 4Ah LiFePo4 battery. Converted to ~32V by...
  8. J

    Show us your bike light set-up

    Thanks! The hid is from ebay. I bought a set for cars, it included two bulbs and two ballasts/controllers. The hid housing is also from Ebay, reflector and glass is real glass, the housing itself is made of plastic. It is designed for a h3 55w halogen bulb (means it can handle high...
  9. J

    Show us your bike light set-up

    Hello everyone, I've been reading threads here a for long time but today I signed up. My first post here will be about my bike light set-up. The front light consists of a 35W HID bulb as my primary light for complete darkness and two Cree Q5 as secondary light for riding on the streets...
  10. J

    Romisen RC-T6 Teardown & Mod

    There seems to be a problem with the pictures. I'm going to get a Romison T6 in a few days and I'd like to know how to disassemble the torch and modify the LED driver. I hope that it's possible to have a look on the pictures!
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