I hope u didnt pay that price!
Iv been looking at those for years, the only thing that keeps stopping me is the lumen output vs the reg t8.
Even the 4ft t5 is 520lm. A 13watt spiral has more lumens for only $3
They offer a 4ft t5 with 760lm. a 13w spiral (870lm) may have more lumens but it's almost using twice the wattage as the 520lm model and 2 more watts then the 760 model. Now compare a 4ft t8 with 1650-1750lm and using only 15w. LEDs are also cooler running. Not to mention that LEDs do not need a ballast which also create heat and noise. But I believe both can have the same whiteness. Obiously the price is not the same but I guess you can run multiple spirals above your tank.
price is actually not that bad if you were to DIY instead of buying a fixture for $500+ for a t5 72" fixture and using twice the wattage, heat, fan and ballast noise.




