Marina Clear Light Aquarium Bulbs, 7-Watt, 120-Volt - 4 Bulbs Total (2 Packs with 2 per Pack) 4 Bulbs Total (2 Packs with 2 per Pack) Marina Clear Light Aquarium Bulbs, 7-Watt, 120-Volt Replacement light bulbs for marina light unit This product weighs 0.03-pound Measures 4/5-inch length by 3-1/9-inch width by 5-2/7-inch height