哪款 LED 台灯的寿命最长？

Product ⇅ Price ⇅ Brightness (lm) ⇅ 色温（开尔文） (K) ⇅ 功耗（瓦特） (W) ⇅ Adjustable Arm/Neck ⇅ 调光功能 ⇅ 灯杆高度（英寸） (in) ⇅
Lampat Lampat LED Desk Lamp (LED rated ~50,000 hours)
US 		£20.14 ≈ — — 10 — ✓ 18.5

A compact touch-control LED desk lamp with four lighting modes, five brightness levels, a 1-hour auto timer and a built-in USB charging port. Suited for students or home-office users who want adjustable color and brightness at an affordable price.

Sources:
Newegg LightsDaddy
搜索购买:
亚马逊 沃尔玛 易贝 速卖通 京东 淘宝
Humanscale Nova Task LED Desk Lamp (3000K, 50,000 hour LEDs)
US 		£371.14 ≈ — 3000 7 — ✓ —

The Nova Task LED lamp provides glare-free, high-CRI task lighting with a compact adjustable arm, occupancy sensor, and long-life 50,000-hour LEDs. It suits professionals who need precise, adjustable desk or video-call lighting and energy-efficient performance.

Sources:
Relax The Back Office Relief Relax The Back (alternate listing)
搜索购买:
亚马逊 沃尔玛 易贝 速卖通 京东 淘宝
Dyson Solarcycle Morph Desk Light (LED, rated long lifespan)
US 		£339.76 ≈ — 1800–6500K 11.2 — ✓ 20.6

High-quality LED desk light with intelligent daylight-tracking, adjustable color temperature and brightness, and long-rated LED life. Suits users who want precise, eye-friendly task lighting and smart controls for work or study.

Sources:
Dyson Abt Best Buy
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亚马逊 沃尔玛 易贝 速卖通 京东 淘宝
BenQ e-Reading LED Swing Arm Desk Lamp (Model: e-Reading, 50,000 hour LEDs)
US 		£171.01 ≈ — 2700–5700K 18W — ✓ 17.7 英寸

Wide, curved head e-Reading lamp with adjustable swing arm, 13 color temperatures, 23 brightness levels, and dual paper/screen modes for reduced glare. Suited for designers, readers, and home office users who need wide, even, eye-friendly illumination.

Sources:
BenQ US Store
搜索购买:
亚马逊 沃尔玛 易贝 速卖通 京东 淘宝
ProHT 12 in Touch Sensitive LED Desk Lamp Model 88173 (lasts up to 50,000 hours)
US 		£16.43 ≈ — — — — ✓ 12

A 12 in touch-sensitive LED desk lamp with a 3-level dimmer and rated to last up to 50,000 hours. Simple, compact design suited for bedside or desktop task lighting and users who want touch control and preset brightness levels.

Sources:
The Home Depot
搜索购买:
亚马逊 沃尔玛 易贝 速卖通 京东 淘宝
EppieBasic EppieBasic LED Desk Lamp (wide LED bar, long-life LEDs ~50,000 hours)
US 		£53.01 ≈ — 3000–6500K 12 — ✓ 20.8 英寸

Wide 31.5-inch LED bar with long-life LEDs (~50,000 hours), touch controls with stepless dimming, multiple color temperatures, and an auto-dimming mode. Suited for home office or wide-monitor workstations needing broad, adjustable illumination.

Sources:
Newegg TechWalls (links Amazon listing)
搜索购买:
亚马逊 沃尔玛 易贝 速卖通 京东 淘宝