KEIGOO Electronic Parts Non-scale Blinking Pattern Fluctuation Weak = 50-100% brightness, changing randomly Number of LED connection terminals 1 Approximate size Width 5.5mm x Length 67mm x Thickness 3mm Caution This product cannot light LEDs by itself. A power supply and LEDs (sold separately) are required. Inserting this product between the power supply coin cell CR2032 constant light board or the like and the LED 1.6x0.8mm chip LED bulb color with connector or the like controls the LED flicker pattern. Information editing: Sakatsu Gallery Beginner-friendly, no soldering required!Easy connection by simply plugging in the connector.The Ultra-compact controller for LEDs can be integrated into dioramas, dollhouses, plastic models, and other small spaces to create realistic light effects by blinking LEDs. Fluctuation Weak 92006 Medium 92007 Strong 92008 Comparison of three types of lighting (Video production: KEIGOO) Flashing Patterns Fluctuation Weak = 50-100% brightness, changing randomly How to use Inserted between the power supply (sold separately) and the LEDs.When connecting the connectors, align their red (+) colors with each other. Recommended power supply Coin cell CR2032 permanent light board Basic regular light 10 recommended LEDs 1.6x0.8mm chip LED yellow with connector 1.6x0.8mm chip LED, bulb color, with connector Various fluctuation patterns offers a variety of controllers that create random brightness changes recommended for flame light reproduction, such as candles and bonfires. Candle style 60-100 I recommend it for indoor rosacea expression! Fluctuation: 50-100% Fluctuation Low Lanterns, lanterns, etc. Fluctuation Medium 25-100 Kettles, fireplaces, etc. Fluctuation High 0-100%. Torches, bonfires, etc. Other KEIGOO products