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Old 09-28-2016, 09:39 AM   #5
kd2iat
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Join Date: May 2015
Location: Northville, NY in the Adirondacks
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Quote:
Originally Posted by N3LYT View Post
You may not need to match lumens the beauty of the LED is direction a incandescent bulb scatters light in all directions the LED's do not they are directional so their light is concentrated in a more singular direction.
That's precisely why the flat arrays with the adhesive backing work so well in the standard RV light fixture at a much lower lumen rating. Put a bulb shaped LED in that fixture, and you quickly learn that a lower lumen rating gives less light than expected.

However, I've found that if you are replacing an incandescent bulb in a fixture like a sconce or chandelier, you need the bulb shaped LED to project the light in multiple directions, and more closely approximating the lumen rating is necessary to put out a satisfactory amount of lighting.

Even with advances in technology giving more lumens per watt in a newer chip, you still need to consider the light output of the bulb being replaced and the light output of the LED. Yes, there are situations where less lumens in the LED will work fine, but not all.
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