This is a great led light that can be used in pools. Is with an 316L stainless steel shell, tempered glass, the cable is waterproof VDE HO7RN-F 5Meter. The 50,000 hours lifetime, low voltage with 12V, more kinds of colour choose for single colour and RGB multicolour. External control and DMX512 control optional. This model was created with specifications of Maranco Water Tech. Ltd. Fully sealed with high quality transparent resin, the bulb is solid inside and free of leakage forever. Fully 316L stainless steel and fully resin filled led bulb.