UV radiation effects on Cannabis. Real or smoke?

Emerson effect is the light penetrating the top leaves to reach the lower fruits. Using UV will not affect this as you are simulation real sunlight. The golden spectrum wavelength is 310nm. Which you can buy narrow band UVB tubes for medical purposes. This is usually used for skin conditions and jaundice however it is the perfect wavelength for increasing terpenes.

Hello, the best advice is out there. Look out for videos on YouTube by Prof. Bruce Bugbee of Apogee Instruments and Utah State University. He goes in to great detail the advantages of using UV for cannabis. Amongst other things. However, the short answer is yes! UV can indeed be used to increase resin production in cannabis, But only if used in the last few weeks of flowering. Anytime before that is pointless and will give the plant a resistance to those light conditions. Depending on the space you have, you want to get a UV-B light. Cheapest options are the Reptile Dragon light kits which can have up to 15% UV-B emitted. This is good enough for your small, 1-4 plants. Anything larger will bee a more powerful light. Solarcure and Migro light both advertise there own brand. What you are trying to simulate is high noon sun. This is where outdoor plant get their UV. By subjecting you cannabis plant with small amounts of UV light (at first, around 15mins midway through current day lighting schedule) and increasing their exposure till harvest. Start this in the last three weeks of flower. UV is dangerous to plants so too much will mutate them. It is also harmful to humans so try not to open the tent while this light is on. This increase in resin, therefore an increase in terpenes is a natural reaction to the UV. It works and has been proven. You just have to test it yourself. I hope this helps, good luck and happy growing

Hello UV have an effect on resin production and when i use it i use UV-B because it increase THC. I use 2 bulb of 18 watt but carefull because too much uv b can be not good for your plant. Hope this help you. Bye

UV is the untold secret to get rid of........****. It could saves entire crops also in Greenland.