I have 2 of these in different sizes but can't remember the brand name of them. Works like a charm.
hygger 14W 24/7 Lighting Aquarium LED Light, Sunrise-Daylight-Moonlight Mode and DIY Mode, Adjustable Timer Adjustable Brightness Fish Tank Light with Extendable Bracket 7 Colors for Planted Tank https://www.amazon.com/dp/B08N196VTG/ref=cm_sw_r_apan_glc_i_Q1KMZRMZ68X98XPN2B5J?_encoding=UTF8&psc=1
NICREW ClassicLED Plus Planted Aquarium Light, Full Spectrum LED Fish Tank Light for Freshwater Plants https://www.amazon.com/dp/B07LH2FJNC/ref=cm_sw_r_apan_glc_i_AQCHK2W51RFGF3TFX1SF?psc=1
This aquarium light was recommended to me on Amazon, so I decided to get it. So far, I really like the automatic 24-hour feature that starts with sunrise, goes into daylight, and then gradually fades to blue sunset and darkness overnight. I'm using it with this one-gallon tank. I ended up getting a piece of clear polycarbonate to use as a lid. I left the white paper on one side of the plastic so that it would reduce the brightness of the light a bit. The monks seem happy!