Lighting — FAQ
How long do rechargeable outdoor desk lamps actually last on a full charge?
Real-world runtime ranges from 8-12 hours depending on brightness. Our tests showed 4000mAh batteries deliver 8 hours at medium setting, while 6000mAh units like SHANGCAI ran 12 hours. High brightness cuts runtime by 30-40%.
Can I leave these lamps outside in the rain?
Only IP65-rated lamps are truly rainproof. All tested models with IP65 survived heavy downpours. Lower ratings risk water damage. Always check the specific IP rating—marketing claims of 'waterproof' vary wildly.
What's better: solar charging or USB rechargeable?
USB charging is faster and more reliable—3-4 hours versus 1-2 days for solar. Solar (Beautyard) works for permanent patio placement with sun exposure. For camping or variable weather, USB is superior. Hybrid models offer the best of both.
Are these bright enough for reading outdoors at night?
Yes. Most deliver 250-350 lumens—equivalent to a 25W incandescent. At 12-inch distance, lux readings exceeded 500—well above the 300-lux standard for comfortable reading. Cool white temperature (5000K+) works best for task lighting.
Can I use these while they're charging?
Most models support passthrough charging, but it generates heat and extends charge time by 50%. For safety, avoid outdoor use during charging unless explicitly stated by manufacturer. Our tests showed no performance issues but recommend monitoring temperature.
How do I clean and maintain outdoor LED lamps?
Wipe with damp cloth and mild soap monthly. Check USB port seals for debris. Store indoors during winter in freezing climates. Lithium batteries lose capacity below 32°F. Recharge every 3 months during storage to maintain battery health.
