CFL Budget, LED alternerative!

[ellydee]

I have no clue but my infrared thermometer hasn't been wrong yet! I only have a 12v pc fan running at 200ma, its hard even for me to believe.... The cobs are only running about 415ma so I'd imagine any amount of active cooling helps! Next I plan on adding in a few Chinese 3watt 450nm (blue) chips, I'll run 'em off of a cell phone charger wall wart....

Powering LEDs with a wall wart is not a good idea. You should use a CONSTANT CURRENT driver. They are cheap and all over Ebay.

 

[FrozenChozen]

Powering LEDs with a wall wart is not a good idea. You should use a CONSTANT CURRENT driver. They are cheap and all over Ebay.

powering cheap leds with cheap wall warts though not a good Idea, is cost effective in veg. I know what constant current drivers are and I also know how to monitor current/efficiency in wall wart using a multimeter... Thank you for your concern

 

[FrozenChozen]

Another week down and another fixture built...


Ill have to put another cob on that other heat sink, I fried the last one and had to scrape it off....
These leds and Miracle grow are workin wonders!