Yes, but I mean 100% will be under 12w, while they take a recommended 48w. Should produce very little heat.You will still want to watch out about running them at 100%. Just because the heatsinks aren't hot doesn't mean the silica isn't. There is a physical limit how much heat can be transferred from the chip to the animinium layer. Computers can measure silica temperature of the processor directly. Some intels are running at 90°C while the heatspreader is still touchable.
LEDs rarely die of high voltage. You would need to zap them with 1000V to destroy them, but with just 4V on a 3.2V led there's so much heat produced, the chip will burn in seconds and no kind of heatsinks will save them.
Edit: these are the strips, 6.5k w/ heatsink
Edit2: forgot link; https://growdaddyleds.com/products/...ds-with-450mm-heatsink?variant=32483316531255
Edit3: Driver; https://www.jameco.com/z/ODLV-45-48...7-LED-Driver-Driver-with-Dimming_2264271.html
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