Like i mentioned i think the difference is in 1 being with glass housing and the other is in stainles steel,i dont know i just bought 4 sets off different brands to compare them,i denmark we also use 220 volt and not 110 volts like you do over there so maybe thare are more differences in how the heaters are made ?
it was just to help out so you could have as low as possible power consumption and i choose the cheap choson heaters,my electric bill is over 400 $ a month just for the fish and feedertanks.
I tested the 4 different brands over a 8 month period and the choson won over jager,via aqua,aquael and newatt on a constant temp off 26 degress celcius or 78.8 fahrenheit,the choson save me so much power that they will have paid for the all the heaters i have bought for the test in 10-11 months.
it was just to help out so you could have as low as possible power consumption and i choose the cheap choson heaters,my electric bill is over 400 $ a month just for the fish and feedertanks.
I tested the 4 different brands over a 8 month period and the choson won over jager,via aqua,aquael and newatt on a constant temp off 26 degress celcius or 78.8 fahrenheit,the choson save me so much power that they will have paid for the all the heaters i have bought for the test in 10-11 months.