Keep your nails healthy and beautiful anywhere and anytime with this environmental friendly 36 Watt Professional UV curing lamp for fast acrylic nail Gel drying. Excellent and professional quality for both business and personal use, and it s light enough to bring along with you during travel or anywhere. 4 piece of 9Watt UV bulbs are included and it also features a built-in timer. Note 1: Before you buy this product, please make sure whether your nail polish works with this product. If you use the wrong product, your gel will start peeling and cracking by the end of the day, moreover, it can't dry your polish at all. Note 2: Although the wavelength (highest peak=370.um) is a visible light and harmless to eyes, but staring at the bulbs/lights for too long is not recommended.