Start with what the lamp needs to do. A clamp lamp saves desk space; a weighted base can move between surfaces. The order below prioritises space-saving task lighting before a freestanding alternative. Compare attachment, bulb compatibility and local electrical specifications, not just appearance.
A steel task lamp with an adjustable arm and head. IKEA says it can be used on a desk or mounted on a wall. The light bulb is sold separately; bulb sockets differ by market, so match the local model.
A classic desk lamp with an adjustable arm and shade. A freestanding base offers a different placement option from a clamp lamp. The bulb is sold separately and regional sockets must be checked before purchase.
Measure the desk edge or available footprint before ordering. Bulb sockets and electrical specifications can differ by country. The linked manufacturer pages are regional references; match the actual Thai listing and seller warranty before checkout.