Most LED room lights use one of three power options: USB power (including USB-rechargeable models), battery power (common cells shown include 3× AA alkaline, CR2032 lithium coin cells, and single 18650 rechargeable lithium cells), or direct plug-in/AC power. Availability varies by product, so check the item listing to confirm the power source for a specific model.
Color options include clear/white and RGB or multicolor (red, green, blue combinations on multicolor sets). Bulb types and shapes listed include LED (integrated/non-removable), SMD (surface-mounted diodes), and conventional 5 mm LED shapes.
Reported bulb spacing values include about 3.94 inches, 4 inches, 5 inches and 7.09 inches across different string and curtain styles. Actual spacing varies by product—check the listing specification for the exact measurement.