Question 1

What's the distance on it?

Accepted Answer

Thank you for your question. Do you mean how far away the lamp can illuminate? Short answer is it can reach very far. But as the power reduces over the distance so the accurate answer to your questions really depends on your purpose. What application are you trying to achieve here? For example, if you are simply trying to illuminate the things which reacts to the blacklight, such as white cotton shirt, running shoes with reflective materials, fluorescent ink... with the 50W UV LED light you can easily do that even over a very long distance. For a typical setting, such as around 15 meters (45 feet), such applications can be easily achieved. Depending on how intense your application require the UV to be, you may want to set your LED lamp closer or farther away from the object being applied on. If you have a more specific usage in mind, I may be able to provide more accurate answers for you. Right now I hope what I have told you make a little sense to you.

Question 2

We need a blacklight for stage lighting.  Has anyone used this for that sort of application? We need to light up an entire highschool auditorium stage

Accepted Answer

Thank you for your question. Our experience is that If the lights are fixed at more than 15 feet from the ground or if the area to be covered is more 400 square feet, to ensure the best effect you might need the 50W version. Otherwise this 20W light should work for your purpose.

Question 3

will this uv light kill fungus

Accepted Answer

Thank you for your question. This lamp have the capability of doing so but this was not what it was designed to do specifically.  I would suggest buying the specific types of UV lights which specializes in killing fungus if that is your SOLE purpose. Also please make sure the lamp you buy has to fit the space where you want it to work in.

Question 4

Does this tan?

Accepted Answer

Theoretically yes but NEVER try it on human. Because this is designed to be an ambient background light (for party, events), or to be used on objects only (art display, etc.). You could definitely use it to tan objects, such as furniture, wooden musical instruments, etc. As an alternative choice, you could try out this new version which is on sale, it comes with on/off switch (not waterproof though):  https://www.amazon.com/dp/B07FZY5LRD

ASIN	B01LT53312
Batteries are Included	No
Beam Angle	120 Degrees
Best Sellers Rank	#116,213 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #97 in Black Light Fixtures
Brand Name	HouLight
Bulb Base	E26 Medium
Color	Uv Led Flood Light
Customer Reviews	4.4 4.4 out of 5 stars (1,674)
Finish Types	Painted
Item Dimensions L x W x H	3.8"L x 4.6"W x 3.8"H
Item Weight	14.4 ounces
Light Source Special Features	Narrow bandwidth black light only
Light Source Type	LED
Light Source Wattage	10 Watts
Manufacturer	HouLight
Manufacturer Part Number	HOULED-UVFL01
Manufacturer Warranty Description	12 months.
Material Type	Metal
Maximum Compatible Light Source Wattage	10 Watts
Model Number	HOU-FL-UV
Mounting Type	Floor Mount
Number of Light Sources	1
Power Source	AC
Shade Material	Glass
Shape	Reflector
Style Name	10 Watts
UPC	707129664778
Unit Count	1.0 Count
Voltage	110 Volts
Wattage	10 watts

UV LED Blacklight, HouLight High Power 10W LED Black Light Floodlight IP65-Waterproof (85V-265V AC) for Blacklight Party Supplies, Neon Glow, Glow in the Dark, Birthdays, Blacklights, Curing

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