Depends on the stage your in. Vegetative growth requires more blue spectrum light, so the white bulb, and the more orangy/redish spectrum are better for flowering or budding, Tell us more details about the grow.
i told the guy i need MH and he called and asked and said there are two types bulbs.... said its a screener and i just need to pick bulb type... btw i asked him if he also has HPS so he said.. "yeah its the same stuff..."
I happened to obtain a 1500w lightning sys, i think its white(i couldn't get it work yet) - will it be good any...? thats like 250000 lumens!! - you think it would make the plants grow superfast??(hopefully not burning them too )
:smokin3:
look if you want a good system for a cheap ass price go to www.htgsupply.com they have system with both MH and HPS at any watt. i use the 400watt MH and HPS system for a cheap ass price.
thank you for your reply Weediologist though you didn't answer my question at all i got it for free! and now i made it work yellow bright as sun and hot as hell too...
Have you figured out waht type of lighting. On the ballast or power source, or even the bulb it should have marking designating MH metal halide, HPS, high pressure sodium, or if it is old school, and sounds like it may be, it mihgt be mercury vapour. If it is the last one mentioned, its doesnt have the proper spectrum for growing.