Check the listing for details. Sunleaves OptiLUME, 600w MH Conversion Lamp. Color: Blue, Condition: New. Listed at 39.99 USD. Sunleaves OptiLUME, 600w MH Conversion Lamp Your customers will love the convenience of the 600-watt Sunleaves OptiLUME Metal Halide Conversion Lamp. Compatible with 600-watt HPS ballasts, its blue-spectrum light simulates the summer sun, promoting lush overall plant growth. Lamp produces 56,000 initial lumens and has a 4,200K color temperature and 12,000 hour lifespan. One-year manufacturers warranty is included. Conversion lamp is not recommended for use in electronic ballasts. Features Backed by manufacturer's warranty. Fast and Free Shipping You're already purchasing the item. Why pay additional for shipping, especially slow shipping? We get your order shipped out within 1-business day and delivered to your doorstep as quickly as possible. Competitive Pricing With our dynamic pricing model, our prices are always competitive. Our prices are some of the lowest that you will find on the internet. Rest assured that you're getting a good deal when purchasing with us. 30-day Money Back Guarantee We are committed to making sure that you leave this transaction satisfied. If you're unhappy with the product for any reason, you may return it back for your money-back or a replacement within 30 days. No questions asked!