These deep cycle 12V LiFePO4 (or LFP) batteries are the best batteries you can buy to run small boats and watercraft like kayaks:
These portable charging stations have 120V output and run things like table lamps and charge devices like laptop computers:
Here are some LED bulbs with very low flicker rates (less than 2% flicker). These LED bulbs even flicker less than their incandescent equivalents, which have a 6 to 12% flicker rating.
ASUS and Acer offer new monitors with “Eye Care technology”. These brands are generally the best choices if you are looking for a Low Blue Light (LBL) and flicker-free monitor.