Help Center
How to Get Tax-Exempt Status
Step 1: Submit Required Documents
Email the following to support@langysolar.net:
✅ Valid tax-exempt certificate (e.g., resale certificate, nonprofit exemption form).
✅ Your contact details (email & phone number) for order placement.
We’ll register your tax-exempt account and notify you once approved.
Step 2: Place Your OrderUse the same email/phone number linked to your tax-exempt account when ordering to ensure automatic tax removal.
Solar Light Installation Guide
Before Installation:
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Turn On the Lamp
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Press the "ON" button to ensure the light functions before mounting.
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Test Placement First
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Temporarily position the light to check:
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Height (see recommendations below).
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Spacing between fixtures for optimal coverage.
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Recommended Installation Height by Wattage:
| Wattage | Max Height |
|---|---|
| 60W | ≤ 16.4 ft (5 m) |
| 90W | ≤ 22 ft (6.7 m) |
| 120W/200W/300W | ≤ 26 ft (8 m) |
Additional Tips:
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Ensure the solar panel faces direct sunlight (no shading).
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Secure mounting to avoid wind damage.
UFO High Bay Light Installation Guide
Recommended Ceiling Height by Wattage:
| Wattage | Max Ceiling Height |
|---|---|
| 100W | ≤ 13 ft (4 m) |
| 150W | ≤ 15 ft (4.5 m) |
| 200W | ≤ 20 ft (6 m) |
Installation Steps:
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Pre-Installation Check
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Ensure power is turned off at the circuit breaker.
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Verify that the mounting surface can support the light’s weight.
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Mounting the Light
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Use hardware to secure the UFO high bay to the ceiling.
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For suspended mounting, ensure chains/cables are rated for the weight.
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Wiring & Power Connection
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Follow local electrical codes.
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Connect wires (L/N/Ground) as per the wiring diagram.
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Final Check
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Restore power and test the light.
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Adjust the beam angle if needed for optimal coverage.
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General Warranty Coverage
All Products Include:
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30-day return/refund for unused items in original condition.
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1-year free repair/replacement for manufacturing defects
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Extended coverage available for specific products (see below)
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2. Warranty Periods & Services
| Product Category | Free Coverage | Extended Coverage |
|---|---|---|
| Solar Lights | 1 Year | No extended coverage |
| UFO High Bay Lights | 1 Year | 2-5 Years (with charges) |
| Solar Attic Fans | 1 Year | Up to 10 Years (with charges) |
3. Warranty Charge Schedule
UFO High Bay Lights (5-Year)
| Wattage | 1-2Y | 2-3Y | 3-4Y | 4-5Y |
|---|---|---|---|---|
| 100W | $10 | $10+20%SP | $15+30%SP | $15+50%SP |
| 150W | $15 | $15+20%SP | $20+30%SP | $20+50%SP |
| 200W | $20 | $20+20%SP | $25+30%SP | $25+50%SP |
Solar Attic Fan (10-Year)
| Component | 1-3Y | 3-5Y | 5-8Y | 8-10Y |
|---|---|---|---|---|
| Motor+Blade | $30 | $30+5%SP | $30+8%SP | $30+10%SP |
| Solar Panel | $30 | $30+5%SP | $30+8%SP | $30+10%SP |
*SP = Current product price at time of claim
4. Important Conditions
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Coverage Includes:
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Replacement parts only
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Manufacturing defects
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Not Covered:
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Labor costs (installation/removal)
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Shipping fees (after first year)
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Damage from:
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Natural disasters
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Accidents/misuse
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Unauthorized modifications
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Normal wear and tear
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5. Claim Process
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Within 30 Days:
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Return/refund available
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Must be unused and resalable
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After 30 Days:
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Provide proof of purchase
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Submit photos/videos of defect
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Allow 5-7 business days for evaluation
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6. Special Notes
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Warranty becomes void if:
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Product serial number is altered
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Used with non-compatible components
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Installed improperly
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All percentage charges based on current product value
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Customer is responsible for all labor and ancillary costs