Horticulture Lighting Group HLG 30 UVA Supplement 240V LED Bar LightThe perfect way to add beneficial UVA light to any HLG 550 or HLG 600H LED grow light!. The HLG 30 watt UVA LED bar light contains 365nm + 385nm UV A which increases your plant yields and makes your plants resistant to fungal infections. UVA light is proven to trigger increased resin production during the final stages of plant growth. This waterproof plant light can withstand humid and wet environments. The passive cool design of the light makes it