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5% OFF D9 60W 8000LM COB lâmpadas de faróis de carro de LED Lâmpada de nevoeiro H1 H3 H4 H7 H11 9005 9006 6000K Substituição de xenon HID halogênio US$19.94 US$20.99 View It

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toplec 12/01/2020

Fairly good quality, but they get very hot. I measured 100 degrees C at the tip after a few minutes of being power on. I worry about the long-term reliability with temperatures that high. Not actually 30W power consumption: I measured 22W. This power consumption level is constant for any input voltage from 12V to 25V (I did not try any higher than that). So, because it is less than the claimed 30W, that means the lumen output would also be less. More like 2500 lm per bulb, so 5000 lm total (quite a bit less than the claimed 8000). I am using these in a portable spotlight. I would never use excessively bright bulbs like this in a vehicle that is driven on public roads. These bulbs are significantly brighter than standard halogen bulbs, and their beam pattern is not optimized to prevent glare for other drivers. As such, if you use these bulbs in a vehicle, you will be blinding everyone around you on the road. Having a bunch of blind people around you on the road seems like a bad idea to me.

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