Ankace via Amazon offers its Ankace 18-watt Dual-Head Gooseneck 36-LED Grow Light for $29.99. Coupon code "PL4BS52Y" cuts it to $23.99. With free shipping, that's the lowest price we could find by $10, although we saw a similar lamp for $8 less in February. It features a clamp base, five dimmable levels, and three times. Deal ends May 31.