InFocus' SP4805 home entertainment projector features a simple keypad with programmable remote control buttons, and an icon-based menu allows for quick settings adjustments. The projector can connect to DVD players, game consoles, computers and more. A dual mode 160-watt or 200-watt bulb should provide either 3000 hours or 2000 hours of use. You can tell if the bulb is bad by following some steps.
Instructions
1. Watch the screen at startup. Twenty hours before the lamp is expected to expire, a warning message will appear on the screen reading "Change Lamp." A red LED will also flash. The lamp is a high-pressure, mercury glass lamp that can rupture with age, so the manufacturer is keen to get you to replace the lamp before it potentially breaks and spills its hazardous material.
2. Look for unusual dimming of the picture. Unusual dimming indicates a failing bulb.
3. Look for rupturing of the bulb. Any broken glass indicates a bad bulb.
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