Had an old oven hood that never seemed to have a bulb that worked or fit. Decided to upgrade it to have 24 watts of white LEDs. Using 8x 3w LEDs supported on 1.5" aluminum bar from the hardware store, powered with a Mean Well constant current supply that I bought for a different project that never happened. So I have been wanting to utilize it.
Pretty simple project, excluding the oven hood ran about $40. And the LED/heatsink assembly will be easily reutilized when it comes time to replace the oven hood. I would more like to demonstrate the techniques that I used to do this other than expecting people to go out and try to recreate it. This oven hood is well above the cook top, and I have monitored the temperature with a infrared thermometer, but in a lot of cases the LEDs could get to hot from use and stove/oven being on, so bear that in mind.
DISCLAIMER: Of course modifiying anything and using AC wall voltages can be dangerous, anyone recreating or following the instructions on this project does so at their OWN RISK.
Step 1: Materials and Tools
- 3w Cool White LEDs on star heatsinks, I used 8.
- Some High-temp or silicone insulated wire, 20ga or so.
- Constant Current Regulator, from AC I used a Mean Well LPC-35-700, 48v @ 700ma constant current output, 100-240VAC input.
- Aluminum Bar, I used 24" of 1.5" wide, available at hardware stores such as Home Depot.
- Various screws bolts, nuts and washers
- Thermal Compound/Thermal Adhesive
- Wire, 18-20ga, high-heat insulation
- Silicone Sealer
- A sheet metal oven hood.
- Soldering Iron
- Hack Saw
- Drill and bits
- Electronic tools, wire snips, strippers ect