... 2°C, thus ensuring product life, the lowest light decay. 6.603# aluminum housing,surface with ... the biggest advantage is waterproof, smaller size, bigger light area, no noise, easy installation and removal, and ... 2pcs power switch, controlling with 3 modes: blue light / white light / full-bright. Attention: 1.The working environment ... ; -20~+40°C Waterproof grade: IP68 9W LED Waterproof Aquarium Light