Looking for best UV Light for ac leak?

I have Honda civic 2001 dx, my mechanic has put the dye solution the ac system to find the leak. I'm looking to buy a UV light for leak in ac system. But i don't know which one to buy, i don't want to spend much in that.

Amazon prime has a big light (51 UV LEDs) with safety glasses included for $15. There's a smaller light to get in tight spaces for $24.78 right now (also with glasses). I would get that one just because the smaller flashlight lets you get into tight spaces. That will come in handy if the leak isn't easy to see right in front on the condenser. Get under the car with garage doors down and/or at night to get the best look.

I have bought the 51 uv led. Without glasses. Is that ok or without glasses it doesn't work?