I had an order for a qb also and it was ment to ship out Nov 28... Never happened and the site went down. No emails going through. Although ive had two other orders go through no hiccups with them. So maybe their site shit the bed or the company is dead lol.
Damn lol your gonna regret that call to your credit card company.
Im searching for the best efficiency and lightspread. Thought these qbs where the very next step in lightning? But he.. if somebody can convince me that the cxb3590 cxm22 or the vero29 are a better choiche then i will buy those
I could imagion that if 60w is max for the qb304 without heatsink than the half of the board @60w is to much? Or are they that more efficient?
Boards will be restocking early next week.
QB120 is larger than QB 288.. More surface area.
Are you restocking all boards this time? 304,288,120?
Will that little banner on the website that tells you the date and time of restock always be up to date and functioning if there is a release date on boards ?
@Stephenj37826 should know what is going on with Growers Lights.
Awesome thanks! Want to pick up four 288. I’ll keep my eyes peeled on the website & email notifications.
I cant see how a 288 run at 60 watts is going to cover a significantly different area than a 120 at 60 watts, just gonna do it hotter
Width-wise, there's about a 2.5" difference between the boards. With 10 boards in a 4x4 I guess it just depends on the layout he wants to use. But yes, I agree - the wider spread of the diodes on the 120 should keep the board cooler than a 304 at the same wattage. At least, that makes sense to my layman's mind.
I'm assuming the 288s are going to run cooler, they are more packed together, but with more than double the diodes they are getting run really softly
You don't think packing them together makes the board run warmer? I really have no idea, I'm just regurgitating the observations/opinions I've seen. If I ever get that damn IR thermo I've been planning on, I'll test it myself with one of my 120s vs one of my 288s. Now I'm curious!
The choice of qboards was made for the efficiency. 120 diodes must be driven harder for 60w than 304 diodes. So in my opinion the qb304 also driven at 60w will be more efficient. More efficient means more wattage to light insteed of heat.
