SOLAS flares can be seen at the greatest distance for the longest period of time.SOLAS flares like the Red Parachute Signal Rocket you see here offer far better performance than conventional United States Coast Guard approved pyrotechnic signals. This is because they are designed to meet stricter standards set by an international safety organization (SOLAS stands for Safety Of Life At Sea). SOLAS parachute flares ascend to more than 1,000' and burn at a dazzling 30,000 candela for 40 seconds. Compare this to non-SOLAS USCG flares typically found on recreational boats, such as Orions pistol-fired 12-gauge flares, which burn at 16,000 candlepower for 7 seconds and reach 500' and you will understand why these cost more.For most inland and coastal boaters, non-SOLAS (USCG) flares will suffice. But if you are an offshore boater who wants flares that can be seen at the greatest distance for the longest period of time, choose SOLAS flares. World Sailing Offshore Special Regulations, which govern many offshore sailboat races, require SOLAS flares as part of a boats safety inventory.Specifications:Signal Type: Red rocket parachute day/night signalLight Output: 30,000 candlepowerMaximum Altitude: 1,150'Burn Time: 40 secondsVisibility: 30 milesDeployment Method: Self-contained triggerType Approval: USCG, Transport Canada, SOLASReplacement Interval: 42 months from manufacture date