You can't get around the fact that you need a significant amount of light to flower cannabis.
14 Watts isn't going to cut it, unless you are growing a bonsai (or are just using it to veg a couple of seedlings)..
Figure that you need between 20-50W per square foot of flowering space, depending on the efficiency of the lighting you use.
Now you can get that wattage from LED or from conventional lighting. The LED will be more expensive than using HPS bulbs in upfront cost, but if you plan for the long run (say over 3-5 years) the LED (if you get quality, COB-based fixture(s)) will probably be cheaper due to (a) not having the same heat issues, (b) not having to replace bulbs every 6 months or so, and (c) lower electricity costs.
I'd guess that to cover 8 sq ft. of flowering space would cost you around $500 for quality LED fixture(s). Figure about half that to DIY with top quality, high efficiency COBs (e.g. Cree CXB3590s), or a third or so of that if you DIY with lower efficiency COBs (e.g. Vero 29s).
If you can't afford the $500 and are reluctant to DIY, you should use HPS or similar.
14 Watts isn't going to cut it, unless you are growing a bonsai (or are just using it to veg a couple of seedlings)..
Figure that you need between 20-50W per square foot of flowering space, depending on the efficiency of the lighting you use.
Now you can get that wattage from LED or from conventional lighting. The LED will be more expensive than using HPS bulbs in upfront cost, but if you plan for the long run (say over 3-5 years) the LED (if you get quality, COB-based fixture(s)) will probably be cheaper due to (a) not having the same heat issues, (b) not having to replace bulbs every 6 months or so, and (c) lower electricity costs.
I'd guess that to cover 8 sq ft. of flowering space would cost you around $500 for quality LED fixture(s). Figure about half that to DIY with top quality, high efficiency COBs (e.g. Cree CXB3590s), or a third or so of that if you DIY with lower efficiency COBs (e.g. Vero 29s).
If you can't afford the $500 and are reluctant to DIY, you should use HPS or similar.