Two 18watt Lights?

[swayzee_au]

Hey

i just found my old globe boxes and they are

philips 18watt aqua sky globes, just wondering if this is ok for my 150ltre, they are currently in there
and need to be replaced shortly what do you recommend?

cheers

 

[waterdrop]

I don't know, if you go by the numbers, that's 1.11 watts/gallon(US), which is a bit low even for low-light method they way I've read it. Maybe the plant folks won't think that's too low but I'd check over there or wait for one of them to comment. That's exact same wattage I'm using on a 106L for low-light.