11. Why some led bulb seems not lighting when turning on the power?
It should be the IR led bulb, which can not see it lighting with Naked-eyes. Please do not think it not working.
22. If one LED broken, will it affect working of other LEDs?
No! It won't affect other LEDs, the others are still work. Our design is that every led has a protective diode, It is very safe. Protective diode protector for each Led. Even one Led fails, the other LEDs will still keep working.
33.What is the lumen value of this product?
Plant growth requires PAR PPF PPFD values, not lumens. You can refer to the values in my product description.
44.How long is the warranty period of the product?
We offer 5 years warranty. During the Warranty period, if any defects happen, please send us a picture or a video and our engineers will analyze the problem is. We will asap give you a solution.
55. Why is red light important for plants? Why is blue light important for plants?
Red light is very important to plant reproduction. Phytochrome pigments absorb the red and far red portions of the light spectrum and regulate seed germination, root development, tuber and bulb formation, dormancy, flowering and fruit production. Blue light stimulates Chlorophyll production more than any other color, encouraging thick leaves, strong stems and compact vegetative growth.
66. What kind of plant you can grow with our LED Grow Lights?
All kinds of indoor plants, special at Cannabis, others like tomatoes, chilies, eggplant, rose, etc. All kinds of greens: herbs and leafy vegetables, lettuces, bok choy, etc. Also suitable for indoor garden or indoor potted landscape (Most of our customers growth Cannabis, they got amazing harvest with our LED Grow Lights)
77. Which stage this led grow light can be used on plants?
It can provide all the light that Plants needs to grow and flower, to help the plant grow quicker and better, increase yield.
88. I live in Europe/America, will this light work here?
Yes, because the voltage is AC85V-277V. 100V 110V 120V 220V 230V 240V 277V all is ok.
99. Why some buyers need to pay customs duties?
Tariff system of each country is different, and we do not undertake any customs duties or import tax, these charges are not included in the item price and shipping cost, these charges are normally collected by providing freight (shipping) company, some countries may not be made free goods, please send e-mail inquiries or consult us before buying.