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Julian builds: a Monster Bright 30W LED Garden Solar Light (update)

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Updates to my Monster 30W LED Garden Solar Light project. A new PWM solar charge controller with timer function has replaced the old controller and daylight …

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20 Comments on "Julian builds: a Monster Bright 30W LED Garden Solar Light (update)"

  1. zeffur7 says:

    Nice little project.

    If you put a tubular light diffuser below your LED, you could better distribute the LED throughout the yard.

    Thanks for sharing!

  2. hfe18 says:

    why I didn't think this one before..good job.

  3. Where might I find the parts you used for this? I would like to do something similar, but for a porch.

  4. techdetech says:

    nice video, well explained

  5. James Tutton says:

    Hi Julian/All  Be interested to here peoples feedback.  Recentenly purchased a similar PWM charge controller and in testing noticed something "rather odd". The common connector is the positive connection and a switched side is on the negative. Is this normal for Charge controllers and if so why?

  6. TmX says:

    it would be cheaper to use arduino, and relay 🙂

  7. Chris Souers says:

    "I think I'll just play with it until I work it out by myself." Haha. Classic DIYer

  8. PMB-NZ says:

    I have one of these controllers in the roof space running some night lights. A 20 watt panel on the roof of the house and a 14Ah SLA battery running 3 LED lights. It has been running for a over a year now and works well. The controller turns the lights on at dusk and off at dawn. It seems to treat the battery reasonably well; no signs of stress yet. Although dusk could be a little earlier.

    The lights are flush mounted 5 watt GU10 mains daylight LED fittings stripped and modified for about 6V supply and fitted with mini voltage regulators for steady output and brightness adjustment. A 12V supply at 2.5mA provides plenty of light for wandering about.

    I did try a red LED lamp as it's supposed to interfere less with sleep. But the it had a much higher current draw for lest light, and just wasn't a nice light.

  9. Luc Peeters says:

    Julian please please please make sure you use a fuse as close as possible to the battery. I think you should also point out to our youtube watching friends that playing with batteries involve a bit of danger.
    I have a similar setup and after 25 or so experience I managed, while trying to be quick, to mess up the polarity. The result was an enormous bang and I was lucky I was wiring it outside, also part of the issue of not seeing the colours correctly … too much sun. Luckily I was unharmed.
    Also do you buy these batteries new or do you get them from car wrecks?

  10. Landrew0 says:

    The problem with substituting a timer for a light sensor, is that the timer needs to be sophisticated enough to adjust for the changing day-length throughout the year.

  11. BersekViking says:

    With the placement for the controller, it looks like it could be filled with water if it is raining and wind. I would have but a cover over the controller.

  12. PuchMaxi says:

    You might want to put some transparent tape over the display, in order to prevent the ingress of water.

  13. MrOpenGL says:

    Did your charge controller do proper PWM and floating/absorption voltages or did it overcharge the battery like mine did? Please test it, it's important to know if I should get a refund from Alice or ask her to send a new one 🙂
    PS I love your garden light, I am trying to do the illumination of a tree with RGB LEDs and the charge controller from Alice but since it doesn't properly terminate charge, I'm not using it 😀

  14. Really sweet! Love seeing these updates on your garden solar lights =D

  15. Peter C says:

    The only thing really preventing me from doing something like this is the cost of crystalline solar panels. That and having a large proportion of the site wired with armoured cables. Environmentally, the solar array on the roof can generate about 6-7kW in sunlight, so you can't say I'm not trying with solar!

  16. Did the light turn off after 3 hours??

  17. Hope the Light does not burn the Battery.

  18. mnelson10000 says:

    That''s very cool.  Maybe you could fit a smaller batter on top of the platform with the controller…?  Like a UPS battery?  It might look a little less utilitarian like that.  I like it and I'm impressed all of the electronics have held up in weather this long!

  19. Nice project, I must admit I would not like to live next door to you. I am an astrophotographer and LED Lights are the most light polluted source known to our lot.

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