par 38 led

[limz_777]

par 38 led , anyone using for fresh water planted tank ?

[thebaldingaquarist]

I will be using par 30 LEDs in my new tank. whats the matter?

[limz_777]

curious of the light spread , what size tank are you using ? and how many par 30 ?

[thebaldingaquarist]

curious of the light spread , what size tank are you using ? and how many par 30 ?

I am using 12 degree beam angle, par 30 LED spotlight bulbs. 30Watts each. 8 of them to illuminate a 9ft(long)X1.5ft(depth)X1.5ft(height) tank. Cool white.
forgot the temp and the lumen count.

Its a new tank in planning. bought the stuff, installed.. looks to be bright enough. not sure if it will work. (cross fingers)

[felix_fx2]

Can advise ?
branding, as in generic china ones or ones from makers like phillips osram megaman. Price range, no need exact.

btw, that's a big tank to test on. Kudos to you

[limz_777]

agreed big project , any pic of your set-up ?

still looking at options , the china ones is quite affordable and easy to replace, by the way i am just using it for a 30 cm cube ,1 par 30 enough ?

[thebaldingaquarist]

My lights are mounted unto the ceiling. the tank will be shorter height in placement. after some math, 11 degrees was ideal. since there is no such thing (china firm told me...) as 11 degree spot lamps i went for 12.

I bought 10 bulbs, generic make, CREE chips from china. approx 50 USD each. its e27 base and i had to hire an electrician to properly space and mount them up unto the ceiling.

No pics yet. now trying to get equipment. only tank, canister, wave maker and lights are in place.

[limz_777]

12 degree might be to narrow ? i got this par38 spec from a reefer site

60° optics = 12" square spread, reaching 2ft deep
90°optics = 14' square spread, reaching 1.3ft deep

might differ thou due to different spec

[thebaldingaquarist]

12 degree might be to narrow ? i got this par38 spec from a reefer site

60° optics = 12" square spread, reaching 2ft deep
90°optics = 14' square spread, reaching 1.3ft deep

might differ thou due to different spec

Sorry, did not see the reply on this thread.

12 degrees is because the lights are mounted up on the ceiling, pointing down. distance from lamp to tank base is about 2m. with 10% diffraction, i guesstimate 30 watts is enough.

If you are looking for high tech planted tank, you would probably want to go for branded stuff.
I like to waste money doing experiments...

[limz_777]

i decided to try out those flood lights instead , just order one 10 watt from ebay

[felix_fx2]

i decided to try out those flood lights instead , just order one 10 watt from ebay

i using 10w flood, can't do high tech with only 1 unit. growing fissdens and nana only.

@Erctheanda, its going to be mount on Pendant lamp from ceiling?

[Shadow]

10W only for fissiden and nana? what is your tank dimension?

[limz_777]

i using 10w flood, can't do high tech with only 1 unit. growing fissdens and nana only.

@Erctheanda, its going to be mount on Pendant lamp from ceiling?

have you tried hair grass ? light spread is good ?

[thebaldingaquarist]

i using 10w flood, can't do high tech with only 1 unit. growing fissdens and nana only.

@Erctheanda, its going to be mount on Pendant lamp from ceiling?

Its mounted on e27 holders on the ceiling. no pendant holders.

Will take pictures this weekend i think.