If it’s too hot, too cold, too wet, or too windy the runner won’t run as fast or as far. If a bulb is used in an area that is hot (above an oven or in the ceiling), cold (in a freezer or outdoors in winter), wet (exposed to rain or near a sprinkler), or vibrating (near machinery or slamming door)-any “abnormal” situation-the ARL will most likely not be reached. Keep in mind that ARL tests are run at conditions that can reasonably be expected in typical applications.

Play straight deathmatch or try Combine vs. In general, the ARL for a bulb that turns on and off once a day will be much longer than a bulb that turns on and off many times a day. Fast multiplayer action set in the Half-Life 2 universe HL2s physics adds a new dimension to deathmatch play. Incandescent, halogen, and LED bulbs are less affected by on/off cycles than Fluorescent, Compact Fluorescent, and HID bulbs. Turning a bulb on and off, on and off, on and off reduces the ARL. Some bulbs may have failed within 50 hours, some within 450 hours, some within 700 hours, etc.

For example if 100 bulbs are tested and have an ARL of 1000 hours, 50 of the bulbs had died when the test time reached 1000 hours. In the light bulb industry, the Average Rated Life (ARL) is how long it takes for half the light bulbs in a test batch to fail.