300 watt No name Chinese led?

whats up RIU. After a 2 year break i'm finially growing some herbs. I recently inheridited a chinese grow light. It is 300 watt and doesn't appear to have any name/brand name what so ever. I know that the person who gave it to me has used it and had some sucessfull grows.

I have 2 Northern lights autos that are 2 and 3 weeks old respectively. The box is roughly 2 feet wide, 2 feet long and four and a half to five feet tall. Do you think that this light is sufficient to grow two plants in a small grow box or would you reccomend buying a new grow light? (i was thinking along the lines of a mars hydro 300 watt). All imput is appreciated.

If its an older blurple fixture, plan on 50w/ sq ft of area. Measure the power used and base coverage from that. Maybe a couple of smaller plants or one decent plant.

silv3rbull3t said:

whats up RIU. After a 2 year break i'm finially growing some herbs. I recently inheridited a chinese grow light. It is 300 watt and doesn't appear to have any name/brand name what so ever. I know that the person who gave it to me has used it and had some sucessfull grows.

I have 2 Northern lights autos that are 2 and 3 weeks old respectively. The box is roughly 2 feet wide, 2 feet long and four and a half to five feet tall. Do you think that this light is sufficient to grow two plants in a small grow box or would you reccomend buying a new grow light? (i was thinking along the lines of a mars hydro 300 watt). All imput is appreciated.

Click to expand...

Open it up check what drivers it has you could probably replace the LEDs with cobs or strips and reuse the case and driver

I have a Mars 192 reflector series I was gonna gut for extra parts. Its 440w wall draw. If your interested in it. I may sell it, instead of yanking parts out of it.

GBAUTO said:

If its an older blurple fixture, plan on 50w/ sq ft of area. Measure the power used and base coverage from that. Maybe a couple of smaller plants or one decent plant.

Click to expand...

How do you measure the actual power output from the LED light? Not sure if this is helpful but i can get my hands on a light meter that measures LUX from work

silv3rbull3t said:

How do you measure the actual power output from the LED light? Not sure if this is helpful but i can get my hands on a light meter that measures LUX from work

Click to expand...

Kilowatt meter. Plug it in the wall. Then plug the light into it. Turn it on. Tells you how many watts the entire fixture is pulling. But say it shows 300 watts pulling at the wall. That does not mean you have 300watts of light coming out of the light. In older led grow light they arent very efficient. A big % of the wall draw is power wasted as its turned to heat. For some reason on older blurples I think I read somewhat like 35ish% is lost to heat. So the 300 wall pull watts. Is really only 195 watts of light. You get 65 watts of actual light per 100watts. 35 watts is lost through heat. And 300 minus 35% leaves 195watts. I'm not 100% sure if its 35% but it's pretty high. May even be 40% depending on the type of leds. If you take a voltage meter and measure the dc out out on the drivers. And the multiply that by the current they are will give you the watts of the actual drivers and leds.

whytewidow said:

Kilowatt meter. Plug it in the wall. Then plug the light into it. Turn it on.

Click to expand...

The 50w/sq ft metric is a rough way to determine how much PPFD the fixture can produce-not 100 % accurate but it will get you in the ball park.

My 300 watt led are cheap china lights. However they work good for what I use them for which is extra light in corners.