Are Drivers Really Needed? 12v 9 LED Lamp

[texaspyro]

You could mod the sense resistors to get some more current. The PT4115’s can do 1.2A, but 1A is probably more realistic. PT4115’s are actually a fairly decent buck converter chip. I used PT4115 drivers in these and a couple of triple Nichia 219 wall wash floodlights:

Waldmann Omnivue Lighted Magnifier Nichia 219 Retrofit

I have a rather nice lighted magnifier in my workshop. It is a Waldmann Omnivue. These sell for around $400 each, but I snagged this one years ago at a local surplus store for around $40. [image] The only problems with it is that it uses 3 G23 9W compact fluorescent bulbs. These put out around 500 lumens each. The magnifier lets you select either two or three bulbs. There is also a snap-in diffuser over the tubes. You can get add-on lenses for a X2 and X4 magnification boost. [image] Floures…

Nichia 219 Desk Lamp Retrofit

When I was upgrading all the lighting in my house to LED lights (My adventures in LED home lighting) my favorite Ebay LED bulb seller often had some other LED type items on sale. I occasionally put in some lowball bids and wound up with some items for stupid cheap prices (anybody need any LED street lights?). One of the items that I bid on and won was an LED desk light… 5 bucks or so and shipping costs were combined with some other stuff I bought that day. It was advertised as a 10 watt light, …

The problem you will have adding XML’s is mounting and heat sinking. XML mod is probably not too practical.