<div dir="ltr">problem with heaters etc that aren't tungsten lamps...<div><br></div><div>if they have the resistance of a cool lamp,</div><div>as is needed to stabilize the dimmer/LED combo at low level setting,</div><div><br></div><div>they will have approx that same low R when the level goes to @FULL</div><div>thus draw much more power...</div><div>unlike a tungsten lamp filament which has almost 10X the cold R when @FULL.</div><div><br></div><div>So looking at a 40W lamp example</div><div>(which I've sometimes found to be about the smallest-W </div><div>lamp that will work for stability)</div><div>that lamp, heated @FULL, has about 360 ohms to draw 1/3 A,</div><div>thus about 40 ohms cold.</div><div><br></div><div>Replace that lamp with a 40 ohm Resistor [heater] for same stabilizing effect,</div><div>it's still near 40 ohm @FULL, 120V on 40 ohm is 3A, that's 360 W.</div><div><br></div><div>You would have to figure out how to handle 360 W of heat.</div><div><br></div><div>If it's not going to be @FULL for a longtime,</div><div>bury the 40W ballast lamp in a tin can or something.</div><div>You can provide air flow and still block the light path,</div><div>so it will be hot, but dark.</div><div><br></div><div>The apparent complexity of the math</div><div> is inversely proportional</div><div>to the level of beer remaining in the bottle.</div><div><br></div><div>Currently enjoying a KONA (HI) product.</div><div><br></div><div class="gmail_extra">-- <br><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div>...Dan Sheehan<br>Fixer of things that break</div><div>TD Walpole (MA) Footlighters<br><br></div></div></div></div></div></div></div>
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