"UV cured" resin final hardening?

[Fluffy]

I bought myself an Elegoo Mars, which is a "UV" curing resin printer. You are supposed to clean and harden the final print in direct sunlight, which is a bit of a problem right now in winter.
I tried using an old UVA face tanning light and got only poor results. Apparently the resign doesn't actually cure in the UV band, but in a more visible blue wavelength slightly outside UV. I was wondering, has anyone a recommendation for LED of the required wavelength?

 

[jassin000]

Use a 1000watt Metal Halide lamp?
It runs in the 93k range for color temp, so very white/blue (also like the sun you shouldn't look directly at it).

data:image/jpeg;base64,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

I used one to grow (veg) weed, people also use them to grow coral in saltwater tanks (process takes years).
LEDs IMO are bullshit when it comes to UV radiation which is what you actually want (not light).

"Ultraviolet (UV) is electromagnetic radiation with wavelength from 10 nm to 400 nm, shorter than that of visible light but longer than X-rays."

"The metal halide medium pressure UV lamp is constructed from a quartz envelope containing mercury with metal halide additives that create specific wavelengths of ultraviolet radiation. The addition of metal halides creates a shift in the spectral output, producing longer wavelengths enabling a greater depth of cure."

 

[hoagtech]

Wells there's a resin curing light

https://www.amazon.com/Curing-Print...t=&hvlocphy=9033357&hvtargid=pla-841964609674

Or a Reptile bulb

https://www.chewy.com/zoo-med-repti...BcW_33FsWzSMN8udRTiVle0RG4_YoGcBoCNuIQAvD_BwE

@jassin000 Those bulbs are old school. Everyone's moved on to either LED fixtures or Double Ended to Veg weed. I haven't seen one of those in my store for years.

 

[Ravepants]

I've had good results with an LED grow lamp, it also works great for retrobrighting stuff as well.

https://www.amazon.co.uk/KINGBO-Spe...keywords=led+grow+light&qid=1580807381&sr=8-7

 

[MrTanuki]

I use a high powered UV Nail Curing lamp i bought off amazon for like 20 bucks. Works amazing for UV Resin jobs! Honestly one of the best hacks I have found