A total of 2 reviews of this product on Reddit.
And no heat at all, therefore you can put the lamp right up almost on the plant. Literally. Here are the cheaper ones:
I bought three, I’m going to set them up on my table at night. These things take no power at all, they can run on 4 AAA batteries for cripes sake but they have a USB source as well. Low power, no fire threat, cheap as dirt and they work!
This is what I use and it’s about the size of a pedal all folded up. Batteries seem to last awhile
IdeaWorks JB6921 Super Bright Portable Desk lamp, White https://www.amazon.com/dp/B01DTJNK50/ref=cm_sw_r_cp_api_i_b91EFb2FW65DF