HOW TO INSTALL TREX® SOLAR POST CAP LIGHT Operation Parameters
Effective Charge in Sunlight VS Cloud Coverage
1. Trex solar post cap lights should be installed in a location with as much direct sunlight as possible for best performance. 2. Shading can reduce the charging performance by as much as 50-80%. 3. Solar light run time is based on: • Angle of sunlight for recharging
100% 75% 50% 25% <25%
• Sun/Cloud conditions for recharging • Duration of sunlight for recharging • Seasonal conditions for recharging • How clean the solar panel is for charging
Run times vary significantly with actual daily weather conditions, post cap installation location, battery condition and numerous other factors. If the installation location experiences long periods of temperatures below 32°F (0°C) it is recommended to shut the post cap off to prolong the battery life.
Angle of the Sun in Different Seasons Summer: • Solar panel 75-100% power
• Longer daylight and optimal charging performance. Spring/Fall: • Solar panel 50-75% power
• Medium daylight and better charging performance. Winter*: • Solar panel <50% power
• Shorter daylight and low charging performance.
*It is not recommended to charge or operate the Trex solar post cap in temperatures below 32°F (0°C).
kWh Hight to Low Map
Note this map provides annual average daily total solar resource. The darker color regions have a higher charge efficiency potential while lighter shaded regions have lower efficiency potential. This map does not account for daily adverse weather conditions that may occur such as rain, overcast and snow fall.
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