For what its worth...I don't think u can beat these bulbs...I've tried nanolux , digilume, digital and a phillips bulb and by far these have the best precision fit (German engineering) and also have the best looking (w the eyes at least) spectrum...I tried side by side vs the nanolux and phillips and noticed more vigorous growth w the Narva...also there is a slight blue tint to the glass which seems to supress alot of the typical strectch...I've replaced all my current bulbs w these and have already ordered backups...probably the last brand I'll ever use...
Verified purchase: Yes | Condition: New
I've used both Phillips LEC bulbs as well. The Ushio LEC bulb is 15-20 larger in size . It seems to me to run slightly brighter and cooler than the Phillips. I'm very happy with this purchase . Although I do wish I would've gotten the 4200 instead of the 3100 k. It seems to have way more usable frequencies for my plants , than the 3100k
Verified purchase: Yes | Condition: New
Verified purchase: Yes | Condition: New
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