Today if you want to drive a bright LED from AC you can go to Home Depot and buy an Edison base LED light bulb for $5, screw it into a standard light socket. The constant current DC supply is built into the base of the bulb.
On Mon, Mar 28, 2016 at 5:24 PM, Ralph Stirling < [email protected]> wrote: > I've been happy with DC input LED drivers from ledsupply.com. > They also have AC input supplies, but I haven't used them. > > For cheaper stuff, you can peruse Deal Extreme, but their site > is rather a pain to search. > > -- Ralph > ________________________________________ > From: Gregg Eshelman [[email protected]] > Sent: Monday, March 28, 2016 4:57 PM > To: Enhanced Machine Controller (EMC) > Subject: [Emc-users] OT: LED driver > > No reply on the candlepower forum, but nearly 100 views of the post I > made. Since that forum is all about LED lighting, I expected someone to > have a suggestion. > I have a couple of LED motion detector lights, each with two Bridgelux > BXRA-56C1000-A LED modules. Nominally rated at 1000 lumens each.The motion > switch is a self contained 110 VAC switch, so all I need are replacement > power supply/drivers with 110 VAC input which will fit within the lamp > bases. > The original supplies went *poof* but the LEDs are still good. They are in > large die cast housings that provide ample heat sinking, but without any > compound between the aluminum LED star plates and the bare metal mounting > surface, so I'm putting some compound on. > Available volume in the base is about 4.25" diameter by 1.25" depth. > >From the LED datasheet > mA Volts Watts Lumens115 25.3 2.9 395250 26.5 6.6 850350 27.3 9.6 1150500 > 28.4 14.2 1580 > The output connection on the dead supplies in the lamps are marked 800 ma > 35 volts. At that power, the lamps will put out enough light to brighten a > wall 20 feet away on an overcast day. I don't think I need quite that much > light in front of my shop or on my back porch. > > ------------------------------------------------------------------------------ > Transform Data into Opportunity. > Accelerate data analysis in your applications with > Intel Data Analytics Acceleration Library. > Click to learn more. > http://pubads.g.doubleclick.net/gampad/clk?id=278785471&iu=/4140 > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > > > ------------------------------------------------------------------------------ > Transform Data into Opportunity. > Accelerate data analysis in your applications with > Intel Data Analytics Acceleration Library. > Click to learn more. > http://pubads.g.doubleclick.net/gampad/clk?id=278785471&iu=/4140 > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > -- Chris Albertson Redondo Beach, California ------------------------------------------------------------------------------ Transform Data into Opportunity. Accelerate data analysis in your applications with Intel Data Analytics Acceleration Library. Click to learn more. http://pubads.g.doubleclick.net/gampad/clk?id=278785471&iu=/4140 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
