LEDENET 20" 30LEDs 5730 SMD Flexible LED Strip Light Waterproof Red Blue White 4:1:1 Growing Lamp for Aquarium Greenhouse Hydroponic Plant Flower Veg Grow Lighting (50cm Long) Plant growing LED strip light can rapidly improve the health of plant and growing. Red:Blue:Red:White=2:1:2:1, LED quantity: 30pcs LED, Red: 20pcs, Blue: 5pcs, Cold White: 5pcs Wavelength: Red 621nm~624nm, Blue 460nm 469nm You can use DC24V power supply (ASIN: B00PFSX5GI, B00PFT163G, B00PFT5T02, B00PFTGM8U) for the strip You can use LED dimmer/switch (ASIN: B00PXKJT8G)