Help Me Pick a DIY Light (cob vs strip vs Ali Board)
Posted: Fri Oct 26, 2018 12:53 pm
Here in canada our dollar is garbage and shipping costs are horrific. Hence the penny pinching mentality and weighing of pros and cons that I am doing constantly. I've got carts filled with every part i'd need to complete either of these light set ups but I'd definitely like some input on which you guys think would be ideal.
I have a 4x8 tent but am only really looking to cover a 4x4. I scrog generally so strips seem ideal but I have concerns about heat (mentioned later) since I can't afford to ship heatsinks to canada.
Strip Build $650-ish
12 4' strips in parallel on an hlg 480h-42a
Cob Build $550-ish
Kingbrite Qb288 build
EDIT: Is it possible running these knock off qb's at 1.050 ma without a heatsink? I can get 8 boards with a more even spread for less than what it costs to ship 4 boards with their slate 2 heat sinks.
Wire 4 boards in series on each driver
[*]On my Cob Build are the vero 29's poke in connectors able to handle the forward voltage if they are all wired in series? Can't seem to find if they have a voltage or amperage limit on them.
[*]Will 140mm heat sinks be sufficient to cool vero 29's at the current of 2100ma?
[*]On my strip build will the bridgelux strips get too hot running at 1050ma on only 1" angles? I've heard conflicting testimony saying that 1" x 1" will be sufficient to run them. I'm aware that heatsink USA offers 1" profile heat sinks but that would come to nearly $300 alone to have 12 heatsinks shipped to my home in canada.
Thanks again to anyone that takes the time to read this and offer some help. I'll likely be detailing the build thoroughly as soon as parts are ordered.
I have a 4x8 tent but am only really looking to cover a 4x4. I scrog generally so strips seem ideal but I have concerns about heat (mentioned later) since I can't afford to ship heatsinks to canada.
Strip Build $650-ish
12 4' strips in parallel on an hlg 480h-42a
- 12 - BXEB-L1120Z35E4000-C-B3 ($207.84cdn)
https://www.digikey.ca/product-detail/e ... ND/7907661
1 - Hlg 480H-42A ($185Cdn)
https://www.mouser.ca/ProductDetail/MEA ... 52bA%3D%3D
12 - 4 foot 1"x1" Angles ($130Cdn)
https://ecommerce.metalsupermarkets.com/
and about $60 of odds and ends such as thermal tape, wagos and what not that I don't have laying around.
Cob Build $550-ish
- 6 - Vero 29 ($28.19Cdn)
https://www.digikey.ca/product-detail/e ... ND/6557092
6 - 140mm x 70mm Heatsinks off Alibaba ($140Cdn)
1 - Hlg 480H-2100B ($199.96Cdn)
https://www.mouser.ca/ProductDetail/MEA ... UfOw%3D%3D
About $40 in Angle for 36"x36" frame
Kingbrite Qb288 build
EDIT: Is it possible running these knock off qb's at 1.050 ma without a heatsink? I can get 8 boards with a more even spread for less than what it costs to ship 4 boards with their slate 2 heat sinks.
Wire 4 boards in series on each driver
- 8 - qb288 ($300Cdn Shipped)
2 - Hlg 240h 1050b ($172 Cdn)
around $60-80 for the odds and ends.
[*]On my Cob Build are the vero 29's poke in connectors able to handle the forward voltage if they are all wired in series? Can't seem to find if they have a voltage or amperage limit on them.
[*]Will 140mm heat sinks be sufficient to cool vero 29's at the current of 2100ma?
[*]On my strip build will the bridgelux strips get too hot running at 1050ma on only 1" angles? I've heard conflicting testimony saying that 1" x 1" will be sufficient to run them. I'm aware that heatsink USA offers 1" profile heat sinks but that would come to nearly $300 alone to have 12 heatsinks shipped to my home in canada.
Thanks again to anyone that takes the time to read this and offer some help. I'll likely be detailing the build thoroughly as soon as parts are ordered.