Tnutz 1inch by half inch for heatsink, anyone tried?

I have been using the 1inch by 1inch for along time at around 60 watts, i would like to use the 1 by .5 on next light at 50 watts. Has anyone tested to see if they can handle 50 watts?

My best guess is that it would be stretching a bit. Also, it depends not only on wattage, it also depends on what strip your using, its pcb alu/fr4 plastic. How hot does the 1 inch tnut get at 60w?

Samsung fseries 4ft singles. Must be plastic pcb. I got the 1 by 1 idea from PLC, greengene but i have cutter strips on them. They work great, at full power they are slightly warm, anything less than wide open they are cool. If you look at picture of timbers magnolia, it looks like they have used the 1inch by half inch on it. I believe it uses brigi strips, maybe they are on aluminum pcb.

Can you find the mass (weight) per unit length of that profile? T slot comes in different thicknesses for many of the profiles. Thermal dissipation is a function of the material in question, the mass of said material and the amount of surface area available for thermal dissipation.
"Heavy is good. Weight is sign of reliability". - Boris the Blade

.375lbs per foot is weight for 1inch by half inch. I believe that is more than 1inch heatsink from american heatsink, not as much surface area though.

They work great with 80w per 46" cut

a 46" cut is what i would be using. If your using 80w i should be fine with 50w.

It should be fine at 50W, I agree with Ron. A 46" length comes out to 670ish grams, which should be more than sufficient for that thermal load. An actively cooled heatsink of that mass will cool an 80W CPU no problem. Granted, you're running passive, but you've got plenty of surface area with the t-slots, and the thermal density of your strip is much lower than that of a similarly powered COB or CPU.