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Where to buy → sales@lumsic.com
Support

Answers, and a real inbox.

Most questions are about batteries and charging, so they are answered first. If yours is not here, write to us — a person replies, usually within two business days.

01Frequently asked
How long does the battery actually last?
Quoted runtime is measured at 50% brightness with a new battery. At full brightness expect roughly 60% of the quoted figure; at the lowest setting, more. Batteries lose about 10% of capacity per year with normal use, and every rechargeable model has a replaceable pack.
Can I leave it plugged in all the time?
Yes. The charging circuit stops at full and does not trickle overcharge. For battery health we recommend a full discharge roughly once a month if the lamp stays on a cable.
The touch sensor is not responding.
Check that the lamp is switched on at the base and has charge. The sensor needs a clean, dry surface — oil from hands or polish will block it. If it still does not respond, contact us with your order number.
Where can I buy spare parts?
Battery packs and charging cables are available for every current model for at least five years after discontinuation. Email us with the model number printed on the base.
Do you ship outside the United States?
Products are currently sold through Amazon US. For other regions, contact us and we will tell you whether a local marketplace listing exists.
Is the lamp dimmable with a wall switch?
No. Dimming is controlled on the lamp itself, which is what keeps the driver flicker-free at low output.
02Direct
Email

Orders, warranty, spare parts, wholesale.

Response time
Within 2 business days

Monday to Friday, US Eastern.

Buying

All current models are sold and shipped by Amazon.

03Warranty24 months, limited

Two years on the parts that fail.

Every LUMSIC lamp carries a 24-month limited warranty covering manufacturing defects in the LED module, driver, charging circuit and housing. Battery capacity is covered for the first 12 months.

What is covered
Failure to power on, flicker at any brightness, a charging port that stops accepting a cable, or a touch sensor that stops responding under normal use.

What is not
Water damage, cracked housings from drops, normal battery ageing after 12 months, and products bought from unauthorised sellers.

To claim, email sales@lumsic.com with your Amazon order number and a short description. We replace rather than repair in most cases.

04Shipping & returns

Bought on Amazon? Start there.

Orders placed on Amazon follow Amazon's return window and process, which is faster than anything we can do from here. Open your order in Amazon and choose Return or Replace.

If you bought from us directly, or the Amazon window has closed and the fault is a warranty issue, email sales@lumsic.com with your order number. We will confirm within two business days and arrange a replacement or refund.

Return shipping for warranty claims is covered by us. Change-of-mind returns are subject to the original seller's policy.