Vogek Direct via Amazon offers its Vogek LED Bedside Lamp for $39.99. Coupon code "N972BNRS" drops it to $29.99. With free shipping, that's $20 off list and the lowest total price we could find. This aluminum lamp has two USB ports and measures 9" x 2" x 9".

Update: The price has dropped to $34.99 before coupon, $26.24 after.