Grow lampe

what 001100010010011110 said ! what a NERD!. 😍👽 I love it

Good answer by 001100010010011110, don't think you going to get much more technical then that.

to be clear.. the quality of results is almost entirely about DLI as far as any half-decent light on the market is concerned. They are all full-spectrum now, for example. What distinguishes one light from another is not the quality or production of results. It is the efficacy and longevity of the light that you pay for in higher quality lights. A "cheaper" option will grow just as good of weed if providing same DLI. It will cost more per photon and it will dim faster by comparison. For the lm301 and many other midpower LED diodes, 50,000 hours of use is a truly accurate longevity before it dims to 90% of original power -- this rate of dimming speeds up increasingly over time, so it goes down hill faster after this point) if and only if the light adheres to the power it which it was tested for the real specification at samsung com. A high efficacy light will last up to 7-10 years of constant growing (a light solely used for 'flower' phase of a photoperiod would go about 10 years - 12 hours/day before it is 90% of original intensity). A light overpowered by comparison will die faster and produce more heat while operating per photon produced. The cheap stuff might go 3-5 years before it starts dimming significantly below 90%. Depends on how hot they are running the diode. Plus, you save more money on electric bill over the liftime with a poperly powered diode.... less heat if that is an issue, too. Any light can give 35-40 DLI (daily light integral) ... how long that light lasts and how much it costs to run is the difference in quality you pay for.

If the specs are accurate it's a high efficacy light... Looks to have a good enough heat sink from pictures. Should be rock solid if the information is accurate. 1 thing to consider: Strip/bar style of light frame vs Quantum Board (QB - this light is a "QB"). you get better light distribution with strip/bar style frame of light... but i wouldn't overpay for this feature. It should not cost more. Again, QB work great, too, but of what is out ther is less optimal by comparison in a measurable way -- less so for smaller grow spaces. Seems to be a far more premium price for lights in europe compared to usa. 1USD per watt (i.e. 250 usd or less for this light) for a high-end light is typical in USA. About accuracy of information: Are the specs accurate? This is always a maybe. For this light it says it uses samsung chips. Are the "LM301" or some lesser sammy diode? Also, that's only 1/2 the picture. IF these diodes are run hotter than the testing specs at samsung com, you get less efficacy than stated and shorter lifespans than 50k hours stated (90% of original intensity is the measurement here, "L90") So, if it is the better LM301 option, then to reach the efficcy they came (710 umol/s / 250 watts = 2.84 umol/J) you need the proper amount of diodes. Divide watts by total # of diodes and if it's much different than 0.20 wats per diode, it's likely a lower efficacy than stated. Some manufacturers are very dubious... but comparing to spec sheet of corresponding diode moedl on the original manufactuer's site will usually out any bullshit from a light manufacturer. If it is not the lm301 or variant of it, there's no way it's reaching 2.84 efficacy and also increases the chance they are lying about something else important, too So, put a little research in.. contact seller for diode count if they don't give it etc etc.. compare to samson.com spec sheet for that model of diode... make sure whatever diode they use is runnign them at the same watts per diode as the original manufacturer's spec sheet. watts / diode count.. easy way to double check for bullshit. each diode type may have different power operating ranges.. LM301 i am familiar with.. .2watts per diode is how they test them. or was it .25, lol.. okay probably better you double check tha ttoo but .05w difference is okay... if oyu see .35-.50w/diode for lm301, that's mid-to-lower range efficacy... 2.3-2.5 and that directly corresponds to higher cost of electricity to provides name amount of light per day.