For my 2GB Beta battery. The box says the 50 watt power is for 12 gram cylinders. The description on Amazon says it's rated for 5-15g, it looks good and seems well made. The only problem is that the thermometer is off by 6-10 degrees. The temp shows 84 and my timeline shows around 78 which is pretty accurate. Seems to be working so far apart from the accuracy. I will monitor the temp and tank and will update again in a few days.
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