Kohree Bias Light, $10 with code 9QK4O6IU | RGB Bias Light, $10 with code 74J7BQ6Z

If you still haven’t tried out a home theater bias light, there’s never been a better time to pick one up. Kohree’s LED bias light strips plug directly into your TV’s USB port for power, and stick to the back of the set via built-in adhesive. Once you turn your TV on, the LEDs cast a soft glow on the wall behind them, which can reduce eyestrain when watching in the dark, and improve your TV’s perceived black levels.

For a limited time, you can get either a white strip or an RGB model for the same $10 price. Just be sure to note the promo codes.